# Gill Instruments: full page index

> Every public page on gillinstruments.com with its title and summary, for answer engines and assistants. The short version with the key pages is at https://gillinstruments.com/llms.txt.

Gill Instruments (Gill Group) designs and manufactures ultrasonic wind sensors, weather stations, an optical rain gauge, capacitive level sensors, inductive position sensors, oil debris sensors and gas engine controls in Lymington, Hampshire, UK. UKAS-accredited calibration is provided by Labcal (Lab 0625). Contact: https://gillinstruments.com/contact/

## Products: ranges and models

- [Sensors and measurement instruments](https://gillinstruments.com/products/): Ultrasonic wind sensors, compact and modular weather stations, capacitive level sensors, non-contact position sensors and oil condition monitoring from Gill.
- [Accessories and spares for Gill sensors](https://gillinstruments.com/products/accessories/): Cables, connectors, mounts, set-up kit, displays and spare parts for every current Gill sensor. Search by part number or product.
- [Compare Gill products](https://gillinstruments.com/products/compare/): Compare Gill products side by side within each range, on measurement, accuracy, outputs, environmental rating and price position.
- [Condition monitoring](https://gillinstruments.com/products/condition-monitoring/): WearDetect oil debris sensing gives early warning of wear in gearboxes and rotating equipment, so maintenance happens before the breakdown.
- [WearDetect standard oil debris sensor](https://gillinstruments.com/products/condition-monitoring/weardetect-standard/): WearDetect oil debris sensor. Fine and coarse ferrous debris, water and oil temperature, with a separate electronics enclosure.
- [WearDetect with Display](https://gillinstruments.com/products/condition-monitoring/weardetect-with-display/): WearDetect with Display. The oil debris sensor with the display built in.
- [Product finder](https://gillinstruments.com/products/finder/)
- [3-axis anemometer finder](https://gillinstruments.com/products/finder/anemometers-3-axis/)
- [Industrial sensor finder](https://gillinstruments.com/products/finder/industrial-sensors/)
- [Weather station finder](https://gillinstruments.com/products/finder/weather-stations/)
- [2-axis wind sensor finder](https://gillinstruments.com/products/finder/wind-sensors-2-axis/)
- [Gas engine controls](https://gillinstruments.com/products/gas-engine-controls/): Gas engine ignition modules and closed loop air fuel ratio control for stationary gas engines, with spark duration and mixture control.
- [AF120 air fuel ratio controller](https://gillinstruments.com/products/gas-engine-controls/af120/): Closed-loop air/fuel ratio control for spark-ignited gaseous-fuel engines.
- [GS12 Ignition Module](https://gillinstruments.com/products/gas-engine-controls/gs12/): Up to 12 cylinders and up to 3000 microseconds continuous spark duration.
- [GS8 Ignition Module](https://gillinstruments.com/products/gas-engine-controls/gs8/): For gas engines with up to 8 cylinders, including static and non-static applications.
- [GT6 Ignition Module](https://gillinstruments.com/products/gas-engine-controls/gt6/): GT6 Ignition Module. Compact control for smaller gas engines. Gas engine ignition and air, fuel control from Gill Group, with outputs and installation detail.
- [Heat stress monitoring](https://gillinstruments.com/products/heat-stress/): Measure WBGT and heat stress on site with MaxiMet, so work and rest decisions are based on the environment people are actually working in.
- [Liquid level sensors | Capacitive, no moving parts](https://gillinstruments.com/products/level-sensors/): Capacitive liquid level sensors with no moving parts, for fuel, oil, water and coolant in vehicles, tanks and harsh industrial environments.
- [Gill catch tank level sensor](https://gillinstruments.com/products/level-sensors/catch-tank/): Gill catch tank level sensor. ACO Le Mans approved, for endurance motorsport.
- [Custom level sensors](https://gillinstruments.com/products/level-sensors/custom/): When standard stops short, engineer the sensor around the application.
- [DD1615 level display](https://gillinstruments.com/products/level-sensors/dd1615/): DD1615 level display. The display accessory for the level sensor range.
- [LevelDefend military-grade level sensor](https://gillinstruments.com/products/level-sensors/leveldefend/): LevelDefend military-grade level sensor. The military-grade level sensor, built to requirement.
- [LevelLite lightweight level sensor](https://gillinstruments.com/products/level-sensors/levellite/): LevelLite lightweight level sensor. The lightweight level sensor, for weight-critical platforms.
- [LevelPro liquid level sensor](https://gillinstruments.com/products/level-sensors/levelpro/): LevelPro liquid level sensor. The general-purpose capacitive level sensor.
- [LevelSlick level sensor for difficult liquids](https://gillinstruments.com/products/level-sensors/levelslick/): LevelSlick level sensor for difficult liquids. For conductive liquids that coat, clog or corrode.
- [Position sensors](https://gillinstruments.com/products/position-sensors/): Non-contact inductive position sensors with unlimited mechanical life, for motorsport, aerospace and defence. Linear and rotary Blade range.
- [Blade Dual Output position sensor](https://gillinstruments.com/products/position-sensors/blade-dual-output/): Blade Dual Output gives single and dual channel analogue output from the same non-contact, two-part Blade position sensor design.
- [Blade25 position sensor](https://gillinstruments.com/products/position-sensors/blade25/): Blade25 is the 25 mm linear member of the Blade range, and can also be configured for 90 degrees of angular movement. Nothing touches, so nothing wears: the tw
- [Blade360 position sensor](https://gillinstruments.com/products/position-sensors/blade360/): Blade360 is the rotary member of the Blade range, measuring a full 360 degrees with a fully configurable range, and it is submersible. Its digital output is RS4
- [Blade60 position sensor](https://gillinstruments.com/products/position-sensors/blade60/): Blade60 extends the linear travel to 60 mm, and like Blade25 can be configured for 90 degrees of angular movement. Its output set is analogue plus PWM and RS232
- [Rainfall](https://gillinstruments.com/products/rain/): TruMet PW100 optical rain gauge measures rainfall with nothing that tips, wears or needs clearing. A solid state alternative to the tipping bucket.
- [TruMet PW100 optical rain gauge](https://gillinstruments.com/products/rain/trumet-pw100/): TruMet PW100 optical rain gauge. Infrared optical rainfall measurement, with nothing that tips.
- [Tenders and specifications](https://gillinstruments.com/products/tenders-and-specifications/): Check a wind sensor tender or specification against the Gill range. Upload your requirements and see which model meets them and where custom fits.
- [Weather stations](https://gillinstruments.com/products/weather-stations/): Compact all-in-one and modular weather stations measuring wind, temperature, humidity, pressure, rainfall and solar radiation. Compare MaxiMet and MetConnect.
- [MaxiMet Marine weather station](https://gillinstruments.com/products/weather-stations/maximet-marine/): MaxiMet Marine weather station. The sea moves. Your weather station shouldn't lose its bearings.
- [MaxiMet GMX260 Marine](https://gillinstruments.com/products/weather-stations/maximet-marine/gmx260/): MaxiMet GMX260 Marine. Marine wind measurement with heading correction.
- [MaxiMet GMX560 Marine](https://gillinstruments.com/products/weather-stations/maximet-marine/gmx560/): MaxiMet GMX560 Marine. Marine weather measurement with heading correction.
- [MaxiMet compact weather station](https://gillinstruments.com/products/weather-stations/maximet/): MaxiMet compact weather station. Multiple measurements. One integrated platform.
- [MaxiMet GMX200 compact weather station](https://gillinstruments.com/products/weather-stations/maximet/gmx200/): MaxiMet GMX200 compact weather station. Wind measurement in a compact all-in-one station.
- [MaxiMet GMX240 compact weather station](https://gillinstruments.com/products/weather-stations/maximet/gmx240/): MaxiMet GMX240 compact weather station. Wind and rainfall from one compact station.
- [MaxiMet GMX300 compact weather station](https://gillinstruments.com/products/weather-stations/maximet/gmx300/): MaxiMet GMX300 compact weather station. Temperature, humidity and pressure, without the wind element.
- [MaxiMet GMX301 compact weather station](https://gillinstruments.com/products/weather-stations/maximet/gmx301/): MaxiMet GMX301 compact weather station. Solar radiation measurement as a single-parameter node.
- [MaxiMet GMX400 compact weather station](https://gillinstruments.com/products/weather-stations/maximet/gmx400/): MaxiMet GMX400 compact weather station. Atmospheric measurement with rainfall, no wind element.
- [MaxiMet GMX500 compact weather station](https://gillinstruments.com/products/weather-stations/maximet/gmx500/): The full compact station: wind plus temperature, humidity and pressure.
- [MaxiMet GMX501 compact weather station](https://gillinstruments.com/products/weather-stations/maximet/gmx501/): MaxiMet GMX501 compact weather station. The compact station with solar radiation added.
- [MaxiMet GMX550 compact weather station](https://gillinstruments.com/products/weather-stations/maximet/gmx550/): MaxiMet GMX550 compact weather station. The compact station with rainfall, without solar.
- [MaxiMet GMX551 compact weather station](https://gillinstruments.com/products/weather-stations/maximet/gmx551/): MaxiMet GMX551 compact weather station. Every standard parameter in one compact station.
- [MaxiMet GMX552 heat stress weather station](https://gillinstruments.com/products/weather-stations/maximet/gmx552/): Compact weather station with WBGT heat stress measurement, for worker safety.
- [MaxiMet GMX600 compact weather station](https://gillinstruments.com/products/weather-stations/maximet/gmx600/): MaxiMet GMX600 compact weather station. Being retired. GMX603 is the current equivalent.
- [MaxiMet GMX603 compact weather station](https://gillinstruments.com/products/weather-stations/maximet/gmx603/): MaxiMet GMX603 compact weather station. The compact station with the highest-accuracy rainfall.
- [MetConnect flexible professional weather station](https://gillinstruments.com/products/weather-stations/metconnect/): MetConnect flexible professional weather station. Your weather system. Your configuration.
- [MetConnect One flexible professional weather station](https://gillinstruments.com/products/weather-stations/metconnect/metconnect-one/): The variant with wind built in, using an integrated unheated WindSonic.
- [MetConnect THP flexible professional weather station](https://gillinstruments.com/products/weather-stations/metconnect/metconnect-thp/): No integrated wind, so wind comes from a connected Gill anemometer of your choice.
- [MetPak and MetPak Pro](https://gillinstruments.com/products/weather-stations/metpak/): Your MetPak still has a job. It just is not the one we would specify today.
- [MetPak Pro legacy weather station](https://gillinstruments.com/products/weather-stations/metpak/metpak-pro/): Adds rainfall, solar and up to four external measurement devices to the MetPak set.
- [Wind sensors](https://gillinstruments.com/products/wind-sensors/): Ultrasonic anemometers with no moving parts, from the compact WindSonic to research grade 100 Hz measurement. Compare 2-axis and 3-axis wind sensors.
- [Research 3-Axis ultrasonic anemometer](https://gillinstruments.com/products/wind-sensors/research/): Research 3-Axis ultrasonic anemometer. When the data becomes the evidence, the instrument matters.
- [HS-100 research 3-axis ultrasonic anemometer](https://gillinstruments.com/products/wind-sensors/research/hs-100/): HS-100 is the 100 Hz version of the HS-50, with the same horizontal head, stainless steel build, six analogue inputs and inclinometer. Its operating temperatu
- [HS-50 research 3-axis ultrasonic anemometer](https://gillinstruments.com/products/wind-sensors/research/hs-50/): HS-50 research 3-axis ultrasonic anemometer. Horizontal head and six analogue inputs, at 50 Hz.
- [R3-100 research 3-axis ultrasonic anemometer](https://gillinstruments.com/products/wind-sensors/research/r3-100/): R3-100 doubles the output rate of the R3-50 to 100 Hz while keeping the same head geometry, build and input options. It is specified where the turbulence spec
- [R3-50 research 3-axis ultrasonic anemometer](https://gillinstruments.com/products/wind-sensors/research/r3-50/): R3-50 research 3-axis ultrasonic anemometer. Research-grade 3-axis measurement at 50 Hz.
- [TFT Wind Display](https://gillinstruments.com/products/wind-sensors/wind-display/): TFT Wind Display. Clear, live wind data where decisions are made. Ultrasonic wind measurement from Gill Group, with outputs, options and ordering detail.
- [Multifunctional TFT Wind Display](https://gillinstruments.com/products/wind-sensors/wind-display/multifunctional-tft-wind-display/): The multifunctional TFT display, with selectable units, averaging and both marine and meteorological display modes.
- [Wind Display Marine](https://gillinstruments.com/products/wind-sensors/wind-display/wind-display-marine/): The marine wind display part, 1086-0052, listed alongside the multifunctional TFT display.
- [WindMaster 3-axis ultrasonic anemometer](https://gillinstruments.com/products/wind-sensors/windmaster/): WindMaster 3-axis ultrasonic anemometer. 3-axis ultrasonic measurement for complex airflow.
- [WindMaster HS 3-axis ultrasonic anemometer](https://gillinstruments.com/products/wind-sensors/windmaster/windmaster-hs/): WindMaster HS 3-axis ultrasonic anemometer. Horizontal head, stainless steel, 32 Hz.
- [WindMaster Pro 3-axis ultrasonic anemometer](https://gillinstruments.com/products/wind-sensors/windmaster/windmaster-pro/): WindMaster Pro 3-axis ultrasonic anemometer. Stainless steel 3-axis measurement at 32 Hz.
- [WindMaster RA 3-axis ultrasonic anemometer](https://gillinstruments.com/products/wind-sensors/windmaster/windmaster-ra/): WindMaster RA 3-axis ultrasonic anemometer. The right-angled head, for flow along the mounting axis.
- [WindMaster standard 3-axis ultrasonic anemometer](https://gillinstruments.com/products/wind-sensors/windmaster/windmaster-standard/): WindMaster 3-axis ultrasonic anemometer. General 3-axis measurement at 20 Hz, in the lighter aluminium and carbon fibre head.
- [WindObserver precision ultrasonic wind sensor](https://gillinstruments.com/products/wind-sensors/windobserver/): WindObserver precision ultrasonic wind sensor. High-performance wind measurement for demanding environments.
- [WindObserver 65 precision ultrasonic wind sensor](https://gillinstruments.com/products/wind-sensors/windobserver/windobserver-65/): WindObserver 65 precision ultrasonic wind sensor. Precision wind measurement with selectable output rate.
- [WindObserver 70 precision ultrasonic wind sensor](https://gillinstruments.com/products/wind-sensors/windobserver/windobserver-70/): WindObserver 70 precision ultrasonic wind sensor. Aviation and marine approved wind measurement.
- [WindObserver 75 precision ultrasonic wind sensor](https://gillinstruments.com/products/wind-sensors/windobserver/windobserver-75/): WindObserver 75 precision ultrasonic wind sensor. Marine approved wind measurement to 75 m/s.
- [WindObserver 90 precision ultrasonic wind sensor](https://gillinstruments.com/products/wind-sensors/windobserver/windobserver-90/): WindObserver 90 precision ultrasonic wind sensor. The highest wind speed range in the WindObserver family.
- [WindObserver II precision ultrasonic wind sensor](https://gillinstruments.com/products/wind-sensors/windobserver/windobserver-ii/): WindObserver II precision ultrasonic wind sensor. Marine wind measurement with Lloyd’s and ABS approval.
- [WindObserver IS precision ultrasonic wind sensor](https://gillinstruments.com/products/wind-sensors/windobserver/windobserver-is/): WindObserver IS precision ultrasonic wind sensor. The intrinsically safe WindObserver, for hazardous areas.
- [WindSonic Ultrasonic Anemometer | 2-Axis Wind Sensor](https://gillinstruments.com/products/wind-sensors/windsonic/): WindSonic Ultrasonic Anemometer | 2-Axis Wind Sensor. Reliable wind speed and direction measurement without moving parts.
- [WindSonic 60 2-axis ultrasonic anemometer](https://gillinstruments.com/products/wind-sensors/windsonic/windsonic-60/): WindSonic 60 is the standard polycarbonate WindSonic and the starting point of the range. It measures 0 to 60 m/s in a 0.5 kg unit with no moving parts, for g
- [WindSonic 75 2-axis ultrasonic anemometer](https://gillinstruments.com/products/wind-sensors/windsonic/windsonic-75/): WindSonic 75 2-axis ultrasonic anemometer. The same sensor, a higher wind speed range.
- [WindSonic M 2-axis ultrasonic anemometer](https://gillinstruments.com/products/wind-sensors/windsonic/windsonic-m/): WindSonic M replaces the polycarbonate body with hard-anodised aluminium alloy and adds heating, extending the operating range to minus 40 degrees C. It is th
- [WindSonic SDI-12 2-axis ultrasonic anemometer](https://gillinstruments.com/products/wind-sensors/windsonic/windsonic-sdi-12/): WindSonic SDI-12 2-axis ultrasonic anemometer. The SDI-12 output build, for SDI-12 logger networks.
- [WindUltra 2-axis ultrasonic anemometer](https://gillinstruments.com/products/wind-sensors/windultra/): WindUltra 2-axis ultrasonic anemometer. Serious wind measurement when space, weight and survivability matter.

## Calibration

- [Calibration, service and repair](https://gillinstruments.com/calibration/): Traceable calibration for wind, weather and level instruments, through the UKAS accredited Labcal laboratory. Know where your measurement came from.
- [Air velocity calibration | UKAS, 0.1 to 70 m/s](https://gillinstruments.com/calibration/air-velocity/): UKAS-accredited air velocity calibration from 0.1 to 70 m/s for vane, thermal and ultrasonic anemometers and Pitot tubes, at Labcal in Lymington, lab 0625.
- [Gas and air flow calibration | UKAS lab 0625](https://gillinstruments.com/calibration/gas-flow/): UKAS-accredited gas and air flow calibration from 0.024 mL/min to 12,983 L/min for mass flow meters, controllers and rotameters, at Labcal in Lymington.
- [Humidity calibration | UKAS, 10 to 90 %rh](https://gillinstruments.com/calibration/humidity/): UKAS-accredited humidity calibration from 10 to 90 %rh and dew point from -15 to 40 °C, in environmental chambers at Labcal in Lymington, lab 0625.
- [Liquid flow calibration | UKAS, gravimetric](https://gillinstruments.com/calibration/liquid-flow/): UKAS-accredited liquid flow calibration from 0.5 mL/min to 500 L/min, measured gravimetrically with water, for electromagnetic, Coriolis and turbine meters.
- [Pressure calibration | UKAS, vacuum to 1,400 bar](https://gillinstruments.com/calibration/pressure/): UKAS-accredited pressure calibration from vacuum to 1,400 bar, including low pressure from 0 Pa, for gauges, indicators and transmitters, at Labcal, lab 0625.
- [Temperature calibration | UKAS lab 0625](https://gillinstruments.com/calibration/temperature/): UKAS-accredited temperature calibration from -30 to +140 °C for RTDs, thermocouples, probes and loggers, plus electrical calibration of indicators.
- [UKAS-accredited calibration | Laboratory 0625](https://gillinstruments.com/calibration/ukas-accreditation/): Labcal, the Gill Group's calibration laboratory, is UKAS accredited to ISO/IEC 17025:2017 (lab 0625) for air velocity, flow, pressure, temperature and humidity.

## Knowledge

- [Knowledge](https://gillinstruments.com/knowledge/): Technical guides and answers on wind, weather, level and position measurement, written by the engineers who design the instruments.
- [Best wind sensor for harsh environments](https://gillinstruments.com/knowledge/best-wind-sensor-for-harsh-environments/): What is the best wind sensor for harsh environments? A technical guide from Gill Group.
- [Blackwater and wastewater tank level sensing](https://gillinstruments.com/knowledge/blackwater-and-wastewater-tank-level-sensing/): Blackwater and wastewater tank level sensing. A technical guide from Gill Group.
- [Capacitive vs float level sensors](https://gillinstruments.com/knowledge/capacitive-vs-float-level-sensors/): Float sensors are cheap, mature and mechanical. Capacitive sensors are solid-state and continuous. What each does well, and where the whole-life cost lands.
- [Choosing a weather station](https://gillinstruments.com/knowledge/choosing-a-weather-station/): What should I consider when choosing a weather station? A technical guide from Gill Group.
- [Common causes of bearing failure in gearboxes](https://gillinstruments.com/knowledge/common-causes-of-bearing-failure-in-gearboxes/): Overload, misalignment, contamination and heat cause most gearbox bearing failures. What each leaves in the oil, and how early it can be caught.
- [Fuel level sensing for UAVs](https://gillinstruments.com/knowledge/fuel-level-sensing-for-uavs/): Combustion-powered UAVs need fuel level accurate to the last drop, at the lowest possible weight. Why automotive sensors fail at it and what to specify instea
- [Full-range accuracy for Gill wind sensors](https://gillinstruments.com/knowledge/full-range-accuracy/): Six Gill wind measurement products state accuracy across their full operating range rather than at a single reference wind speed: WindSonic 60, WindSonic 75,
- [How a four-stroke engine works](https://gillinstruments.com/knowledge/how-a-four-stroke-engine-works/): A four-stroke engine fires once every two crankshaft revolutions. The four strokes, ignition advance, top dead centre and why timing comes from the cam.
- [How accurate does a wind sensor need to be?](https://gillinstruments.com/knowledge/how-accurate-does-a-wind-sensor-need-to-be/): How accurate does a wind sensor need to be? A technical guide from Gill Group.
- [How are wind sensors calibrated?](https://gillinstruments.com/knowledge/how-are-wind-sensors-calibrated/): Wind sensors are calibrated against traceable reference standards in a wind tunnel. What calibration proves, what UKAS accreditation adds, and what it does no
- [How capacitive level sensing works](https://gillinstruments.com/knowledge/how-capacitive-level-sensing-works/): Capacitive level sensors measure liquid level through the change in capacitance as liquid displaces air between two electrodes. The principle, the calibration
- [How does an ultrasonic wind sensor work?](https://gillinstruments.com/knowledge/how-does-an-ultrasonic-wind-sensor-work/): How does an ultrasonic wind sensor work? A technical guide from Gill Group.
- [How inductive position sensing works](https://gillinstruments.com/knowledge/how-inductive-position-sensing-works/): How does inductive position sensing work? A technical guide from Gill Group.
- [How long should a professional wind sensor last?](https://gillinstruments.com/knowledge/how-long-should-a-wind-sensor-last/): How long should a professional wind sensor last? A technical guide from Gill Group.
- [How often should a weather station be calibrated?](https://gillinstruments.com/knowledge/how-often-to-calibrate-a-weather-station/): How often should a weather station be calibrated? A technical guide from Gill Group.
- [Inductive vs Hall effect position sensors](https://gillinstruments.com/knowledge/inductive-vs-hall-effect-position-sensors/): Inductive vs Hall effect position sensors. A technical guide from Gill Group.
- [Marine sensing: knowledge and FAQs](https://gillinstruments.com/knowledge/marine-sensing/): Marine sensing Knowledge and frequently asked questions. A technical guide from Gill Group.
- [Optical rain gauge vs tipping bucket](https://gillinstruments.com/knowledge/optical-rain-gauge-vs-tipping-bucket/): Optical rain gauge vs tipping bucket rain gauge. A technical guide from Gill Group.
- [Sensor and measurement solutions by application challenge](https://gillinstruments.com/knowledge/solutions/): Start with the measurement problem. Heat stress, fuel and oil level, wear debris, hazardous areas, position, calibration and more, from across the Gill Group.
- [Air quality monitoring | Wind and weather data](https://gillinstruments.com/knowledge/solutions/air-quality-monitoring/): Wind and weather data for air quality monitoring, so pollutant readings show where pollution came from and where it is heading.
- [UKAS calibration and measurement traceability | Gill Group](https://gillinstruments.com/knowledge/solutions/calibration-traceability/): Measurement traceability for Gill and non-Gill instruments. Labcal, our UKAS-accredited laboratory (Lab 0625), calibrates six measurement parameters.
- [Fuel, oil and coolant level sensors](https://gillinstruments.com/knowledge/solutions/fuel-oil-level-sensing/): Fuel, oil and coolant level sensing for vehicles, machines and motorsport. Capacitive sensors with no moving parts and analogue, RS232 or CAN outputs.
- [Gas engine ignition and air/fuel ratio control](https://gillinstruments.com/knowledge/solutions/gas-engine-ignition-control/): Gas engine ignition and air/fuel ratio control: GS8, GS12 and GT6 ignition modules and the AF120 closed-loop controller, IP67 with CAN.
- [Heat stress monitoring | WBGT and TWL](https://gillinstruments.com/knowledge/solutions/heat-stress-monitoring/): Heat stress monitoring for outdoor and industrial work. MaxiMet GMX552 measures WBGT to ISO 7243 and calculates Thermal Work Limit onboard.
- [Level sensors for difficult liquids](https://gillinstruments.com/knowledge/solutions/level-sensing-difficult-liquids/): Level sensing in foaming, viscous, contaminated or corrosive liquids. Capacitive sensors with no moving parts, including LevelSlick for conductive liquids.
- [Low-power sensors for remote and solar sites](https://gillinstruments.com/knowledge/solutions/low-power-remote-monitoring/): Low-power remote monitoring for solar, battery and telemetry sites. Ultrasonic wind sensors and weather stations with no moving parts and low supply current.
- [Marine sensors and NMEA integration](https://gillinstruments.com/knowledge/solutions/marine-nmea-integration/): Wind, weather and tank level sensors for vessels and offshore, with NMEA 0183, RS422 and Modbus outputs and Lloyd's Register approved WindObserver models.
- [Non-contact linear and rotary position sensors](https://gillinstruments.com/knowledge/solutions/non-contact-position-sensing/): Non-contact linear and rotary position sensing. Blade inductive sensors measure across a gap to a passive activator, IP67 and submersible.
- [OEM sensor integration and custom development](https://gillinstruments.com/knowledge/solutions/oem-custom-sensors/): OEM integration and custom sensor development: wind, level and position sensors built into customers' products, plus engineering beyond the catalogue.
- [Oil condition and wear debris monitoring](https://gillinstruments.com/knowledge/solutions/oil-wear-debris-monitoring/): Condition monitoring that starts in the oil. WearDetect captures ferrous wear debris in real time, reporting fine and coarse debris, water and temperature.
- [Optical rain gauge | A tipping bucket alternative](https://gillinstruments.com/knowledge/solutions/rainfall-measurement-without-moving-parts/): Rainfall measurement without moving parts. TruMet PW100 is an optical rain gauge that replicates a tipping-bucket pulse output, 0 to 200 mm/hr at 5% accuracy.
- [Sensor outputs and integration | Modbus, SDI-12, analogue](https://gillinstruments.com/knowledge/solutions/sensor-integration-outputs/): Getting sensor data into your system. Gill sensors output Modbus RTU, SDI-12, NMEA 0183, RS232, RS422, RS485, CAN and analogue, depending on model.
- [Industrial weather monitoring systems](https://gillinstruments.com/knowledge/solutions/site-weather-monitoring/): Automatic weather stations for site weather monitoring. Compact MaxiMet or separable MetConnect for wind, temperature, humidity, pressure, rain and solar.
- [3-axis anemometers for turbulence and flux](https://gillinstruments.com/knowledge/solutions/turbulence-flux-measurement/): Turbulence and flux measurement with 3-axis ultrasonic anemometers: R3 and HS at 50 or 100 Hz for eddy covariance, and WindMaster for 3-axis wind.
- [High wind alarms for cranes, sites and events](https://gillinstruments.com/knowledge/solutions/wind-alarms-operating-limits/): Wind alarms and operating limits for cranes, sites and events. Ultrasonic wind sensors, gust measurement and displays feeding your alarm system.
- [Heated wind sensors for icing conditions](https://gillinstruments.com/knowledge/solutions/wind-measurement-icing-conditions/): Wind measurement in icing conditions: heated WindObserver, WindSonic M and WindUltra sensors, plus the power, siting and specification decisions.
- [Ultrasonic wind sensors vs cup anemometers](https://gillinstruments.com/knowledge/solutions/wind-measurement-without-moving-parts/): Wind measurement without moving parts: how ultrasonic anemometers compare with cup and vane sensors, and where WindSonic, WindObserver and WindMaster fit.
- [Wind measurement on vessels, vehicles and UAVs](https://gillinstruments.com/knowledge/solutions/wind-on-moving-platforms/): Wind measurement on vessels, USVs, buoys, vehicles and UAVs: apparent and true wind, sensor placement and compact ultrasonic sensors such as WindUltra.
- [True wind vs apparent wind](https://gillinstruments.com/knowledge/true-wind-vs-apparent-wind/): What is the difference between true wind and apparent wind? A technical guide from Gill Group.
- [Ultrasonic anemometer vs cup anemometer](https://gillinstruments.com/knowledge/ultrasonic-anemometer-vs-cup-anemometer/): How ultrasonic and cup-and-vane anemometers differ in principle, maintenance, response and whole-life cost, and where each still makes sense.
- [Ultrasonic vs mechanical wind sensor](https://gillinstruments.com/knowledge/ultrasonic-vs-mechanical-wind-sensor/): Ultrasonic anemometer vs mechanical wind sensor. A technical guide from Gill Group.
- [Weather sensors used at airports](https://gillinstruments.com/knowledge/weather-sensors-used-at-airports/): What weather sensors are used at airports? A technical guide from Gill Group.
- [Weather sensors used offshore](https://gillinstruments.com/knowledge/weather-sensors-used-offshore/): Offshore platforms, wind farms, vessels and buoys measure wind, temperature, humidity, pressure and rainfall. What the environment demands and what certificat
- [Weather station vs wind sensor, or vs anemometer](https://gillinstruments.com/knowledge/weather-station-vs-wind-sensor/): What is the difference between a weather station and a wind sensor? A technical guide from Gill Group.
- [What is an ultrasonic anemometer?](https://gillinstruments.com/knowledge/what-is-an-ultrasonic-anemometer/): An ultrasonic anemometer measures wind speed and direction using sound pulses between fixed transducers, with no moving parts. How it works and where it is us

## Industries and applications

- [Industries and applications](https://gillinstruments.com/industries/): Wind, weather and level measurement for marine, energy, defence, research, industrial process and transport. Find the right sensing approach for your sector.
- [Agriculture](https://gillinstruments.com/industries/agriculture/): Weather measurement for spraying, irrigation and crop protection decisions, so the work happens in the window the weather actually allows.
- [Agricultural vehicle engine monitoring](https://gillinstruments.com/industries/agriculture/agricultural-vehicle-engine-monitoring/): Real-time engine condition monitoring provides early alert to engine wear for maintenance planning.
- [Glasshouses and Polytunnels](https://gillinstruments.com/industries/agriculture/glasshouses-polytunnels/): Outside reference weather measurement and non-contact position feedback for glasshouse and polytunnel vents, screens and heating control.
- [Grain Store and Crop Storage](https://gillinstruments.com/industries/agriculture/grain-store-crop-storage/): Temperature and humidity measurement inside crop stores, with Pt100 probe inputs and an outside reference station for drying and aeration decisions.
- [Irrigation and Water Management](https://gillinstruments.com/industries/agriculture/irrigation-water-management/): Weather stations with solar radiation and optical rainfall measurement for irrigation scheduling, so watering responds to measured crop demand.
- [Livestock Housing](https://gillinstruments.com/industries/agriculture/livestock-housing/): Temperature, humidity and air movement measurement for livestock housing ventilation control, where condition is lost before a welfare problem becomes visible.
- [Spray Windows and Drift](https://gillinstruments.com/industries/agriculture/spray-windows-drift/): Compact wind measurement for spray windows and drift control, on the sprayer or at the field edge, with traceable calibration behind the record.
- [Aviation and Airports](https://gillinstruments.com/industries/aviation-airports/): Wind measurement for airports and helidecks, including aviation standard and intrinsically safe anemometers with the approvals operations require.
- [Apron, Stands and Ground Support Equipment](https://gillinstruments.com/industries/aviation-airports/apron-stands-ground-support-equipment/): WBGT heat stress measurement for ramp crews, plus oil debris, level and position sensing on ground support equipment that keeps stands turning.
- [Airport surface wind observation and reporting](https://gillinstruments.com/industries/aviation-airports/aviation-airport-wind-measurement/): Accurate observation and reporting of surface wind at airports. Gill sensing for aviation and airports. Speak to our team about your application.
- [AWOS and Airport Weather Systems](https://gillinstruments.com/industries/aviation-airports/awos-airport-weather-systems/): Separable weather stations for AWOS and airport reporting, with WMO-compliant siting by height and third-party sensor integration into a single station.
- [De-icing and Winter Operations](https://gillinstruments.com/industries/aviation-airports/de-icing-winter-operations/): Temperature, humidity and precipitation measurement for de-icing decisions and holdover times, with heated sensing for winter airfield operations.
- [Fuel Farms and Hazardous Areas](https://gillinstruments.com/industries/aviation-airports/fuel-farms-hazardous-areas/): Intrinsically safe ultrasonic wind measurement and capacitive liquid level sensing for airport fuel farms, hydrant systems and classified hazardous areas.
- [Wind sensors for UAV launch sites](https://gillinstruments.com/industries/aviation-airports/uav-launch-sites/): Ultrasonic wind sensors and weather stations for UAV launch sites. Gill sensing for aviation and airports. Speak to our team about your application.
- [Cities and Buildings](https://gillinstruments.com/industries/cities-buildings/): Compact weather stations for smart city networks, air quality programmes and building management, with the outputs urban systems expect.
- [District Energy and Plant](https://gillinstruments.com/industries/cities-buildings/district-energy-plant/): Gas engine controls, oil debris monitoring and environmental measurement for district heating and CHP plant, where efficiency is judged annually.
- [Drainage, SUDS and Attenuation](https://gillinstruments.com/industries/cities-buildings/drainage-suds-attenuation/): Capacitive level sensing and optical rainfall measurement for sustainable drainage, proving attenuation performance through the storm itself.
- [Facade Access and Cradles](https://gillinstruments.com/industries/cities-buildings/facade-access-cradles/): Ultrasonic wind measurement at the facade for building maintenance units and cradles, with position feedback and UKAS calibration behind the stop call.
- [Pedestrian Wind Comfort](https://gillinstruments.com/industries/cities-buildings/pedestrian-wind-comfort/): Three-axis turbulence measurement and compact street-level sensing to verify pedestrian wind comfort studies against the building that was actually built.
- [Urban Construction Sites](https://gillinstruments.com/industries/cities-buildings/urban-construction-sites/): Ultrasonic wind measurement at the jib and boundary monitoring for urban construction sites, covering lift decisions and neighbour complaints in one.
- [Ventilation and Building Management](https://gillinstruments.com/industries/cities-buildings/ventilation-building-management/): Three-axis air-flow measurement and BMS integration for natural and mixed-mode ventilation, with damper position feedback confirming the strategy ran.
- [Defence and Security](https://gillinstruments.com/industries/defence-security/): Rugged sensing for defence and security platforms: wind, level and position measurement built for military environments and long service life.
- [Ballistic meteorology and missile test site sensors](https://gillinstruments.com/industries/defence-security/ballistic-meteorology-missile-test-sites/): Wind sensors and weather stations for ballistic meteorology and missile test sites.
- [Deployable and Expeditionary Sites](https://gillinstruments.com/industries/defence-security/deployable-expeditionary-sites/): Compact all-in-one weather stations for deployable and expeditionary met capability, quick to configure and low on power.
- [Fuel, Logistics and Infrastructure](https://gillinstruments.com/industries/defence-security/fuel-logistics-infrastructure/): Capacitive level measurement and intrinsically safe wind sensing for bulk fuel and defence infrastructure, where certification decides the shortlist.
- [Steering and brake wear monitoring, military vehicles](https://gillinstruments.com/industries/defence-security/steering-position-and-brake-wear-monitoring-in-military-vehicles/): Steering position and brake wear monitoring in military vehicles. Gill sensing for security and defence. Speak to our team about your application.
- [Systems monitoring in military vehicles](https://gillinstruments.com/industries/defence-security/systems-monitoring-in-military-vehicles/): Robust, high performance liquid level sensors ensure reliable operation of military vehicles.
- [Government and Emergency](https://gillinstruments.com/industries/government-emergency/): Weather and environmental monitoring for government, emergency response and civil protection, where the data has to stand up to scrutiny.
- [Air Ambulance and Landing Sites](https://gillinstruments.com/industries/government-emergency/air-ambulance-landing-sites/): Heated ultrasonic wind measurement and compact weather stations for air ambulance landing sites, giving crews wind and turbulence at the site itself.
- [Weather stations for hazmat and emergency response](https://gillinstruments.com/industries/government-emergency/first-response-environmental-analysis/): Meteorological instruments for hazmat and emergency weather stations.
- [Flood Warning and Water Level](https://gillinstruments.com/industries/government-emergency/flood-warning-water-level/): Capacitive level sensing and optical rainfall measurement with low-power telemetry for flood warning networks at sites with no mains power.
- [Incident Command and Deployable Met](https://gillinstruments.com/industries/government-emergency/incident-command-deployable-met/): Deployable and vehicle-mounted weather stations for incident command, giving plume direction and conditions at the incident within minutes of arrival.
- [Public Estate and Community Resilience](https://gillinstruments.com/industries/government-emergency/public-estate-community-resilience/): Weather stations and WBGT heat stress measurement for civic buildings, rest centres and warm spaces, so responses trigger on local measurement.
- [Temporary Events and Crowd Safety](https://gillinstruments.com/industries/government-emergency/temporary-events-crowd-safety/): Portable ultrasonic wind measurement with UKAS calibration for events and temporary structures, so the call to strike a stage rests on a traceable number.
- [Industrial Process](https://gillinstruments.com/industries/industrial-process/): Level, position and wind measurement for process plant, water treatment, cement and mining, where the environment attacks the sensor.
- [Bearing wear monitoring in production lines](https://gillinstruments.com/industries/industrial-process/bearing-wear-monitoring/): Bearing wear monitoring in production lines. Gill sensing for industrial and process. Speak to our team about your application.
- [Environmental monitoring at chemical plants](https://gillinstruments.com/industries/industrial-process/chemical-plants/): Wind sensors and weather stations for environmental monitoring at chemical plants.
- [Conveyor drive condition monitoring](https://gillinstruments.com/industries/industrial-process/conveyor-drive-condition-monitoring/): Continuous monitoring of wear in conveyor gearboxes ensures maximum up-time.
- [Gas Engines and Combined Heat and Power](https://gillinstruments.com/industries/industrial-process/gas-engines-combined-heat-and-power/): Gas engine ignition modules and closed-loop air fuel ratio control for CHP and genset installations, where availability and efficiency decide the business case.
- [Instruments for environmental monitoring at oil refineries](https://gillinstruments.com/industries/industrial-process/oil-refineries/): Instruments for environmental monitoring at oil refineries. Gill sensing for industrial and process. Speak to our team about your application.
- [Process fluid level monitoring](https://gillinstruments.com/industries/industrial-process/process-fluid-level-monitoring/): Reliable liquid level sensors support optimised production processes. Gill sensing for industrial and process. Speak to our team about your application.
- [Monitoring at utility and waste treatment sites](https://gillinstruments.com/industries/industrial-process/utility-sites/): Environmental monitoring at public utility sites / waste treatment plants.
- [Wastewater level monitoring](https://gillinstruments.com/industries/industrial-process/waste-water-monitoring/): Low maintenance, robust sensors measure waste water levels in water treatment plants.
- [Water pumping station level monitoring](https://gillinstruments.com/industries/industrial-process/water-pumping-station-level-monitoring/): Water pumping station stored water level monitoring. Gill sensing for industrial and process. Speak to our team about your application.
- [Water pumping station operational monitoring](https://gillinstruments.com/industries/industrial-process/water-pumping-station-operational-monitoring/): Water pumping station operational monitoring. Gill sensing for industrial and process. Speak to our team about your application.
- [Marine and Offshore](https://gillinstruments.com/industries/marine-offshore/): Wind, weather and level measurement for vessels, offshore platforms, helidecks and autonomous marine craft, including intrinsically safe options.
- [Dynamic Positioning](https://gillinstruments.com/industries/marine-offshore/dynamic-positioning/): The vessel moves. The position shouldn't. Gill sensing for marine and offshore. Speak to our team about your application.
- [Helidecks & Hazardous Areas](https://gillinstruments.com/industries/marine-offshore/helidecks-hazardous-areas/): Intrinsically safe sensing for hazardous zones and helideck compliance. Gill sensing for marine and offshore. Speak to our team about your application.
- [Hovercraft operation](https://gillinstruments.com/industries/marine-offshore/hovercraft-operation/): Liquid level sensors with marine systems compatibility accurately monitor hovercraft critical fluids.
- [Met-Ocean & Coastal](https://gillinstruments.com/industries/marine-offshore/met-ocean-coastal/): At a remote site, the real cost is the visit. Gill sensing for marine and offshore. Speak to our team about your application.
- [Powerboat stability control](https://gillinstruments.com/industries/marine-offshore/powerboat-stability-control/): High performance level sensors are used in powerboat ballast systems. Gill sensing for marine and offshore. Speak to our team about your application.
- [Ship Navigation](https://gillinstruments.com/industries/marine-offshore/ship-navigation/): When conditions change, ships need more than a compass. Gill sensing for marine and offshore. Speak to our team about your application.
- [Tank monitoring in marine craft](https://gillinstruments.com/industries/marine-offshore/tank-monitoring-in-marine-craft/): Advanced liquid level sensors provide reliable and stable tank level monitoring even in highly mobile marine environments.
- [USV & Autonomous Marine](https://gillinstruments.com/industries/marine-offshore/usv-autonomous-marine/): No crew on board. No margin for sensor failure. Gill sensing for marine and offshore. Speak to our team about your application.
- [Wind-Assisted Propulsion](https://gillinstruments.com/industries/marine-offshore/wind-assisted-propulsion/): When wind becomes propulsion, measurement matters. Gill sensing for marine and offshore. Speak to our team about your application.
- [Mining, Quarrying and Cement](https://gillinstruments.com/industries/mining-quarrying-cement/): Oil debris monitoring for crushers, mills and conveyors, PTFE-coated level sensing for slurry, and certified wind measurement for classified areas.
- [Specialist level sensing in cement and mining](https://gillinstruments.com/industries/mining-quarrying-cement/specialist-level-sensing-in-cement-mining/): Specialist level sensing in cement and mining. Gill sensing for industrial and process. Speak to our team about your application.
- [Motorsport and High Performance](https://gillinstruments.com/industries/motorsport-high-performance/): Non-contact position sensing, capacitive level measurement, oil debris monitoring and trackside weather for motorsport and high performance vehicles.
- [Aerodynamic, brake and suspension control sensors](https://gillinstruments.com/industries/motorsport-high-performance/brake-and-suspension-control-in-high-speed-vehicles/): Aerodynamic, brake and suspension control in high speed vehicle. Gill sensing for transport and buildings. Speak to our team about your application.
- [Off-Highway and Construction](https://gillinstruments.com/industries/off-highway-construction/): Position, level and oil condition sensing for off-highway and construction machines, plus site wind measurement for lifting and working limits.
- [Construction vehicle brake system monitoring](https://gillinstruments.com/industries/off-highway-construction/construction-vehicle-brake-system-monitoring/): Construction vehicle brake system monitoring. Gill sensing for transport and buildings. Speak to our team about your application.
- [Construction vehicle engine monitoring](https://gillinstruments.com/industries/off-highway-construction/construction-vehicle-engine-monitoring/): Real-time engine condition monitoring provides early alert to engine wear for maintenance planning.
- [Position sensing for fork lifts and platform equipment](https://gillinstruments.com/industries/off-highway-construction/position-sensing-for-fork-lifts-and-platform-equipment/): Position sensing for fork lifts and platform equipment. Gill sensing for transport and buildings. Speak to our team about your application.
- [Rail and Rolling Stock](https://gillinstruments.com/industries/rail-rolling-stock/): Capacitive level sensing, non-contact position feedback, oil debris monitoring and ultrasonic wind measurement for rolling stock, depots and track.
- [Level sensors for railway locomotive fluids](https://gillinstruments.com/industries/rail-rolling-stock/railway-service-continuity/): Liquid level sensors accurately monitor railway locomotive critical fluids.
- [Renewable Energy](https://gillinstruments.com/industries/renewable-energy/): Wind measurement for turbine control, site assessment and solar tracking, with the reliability that unattended renewable energy sites demand.
- [Drivetrain and Machinery Condition](https://gillinstruments.com/industries/renewable-energy/drivetrain-machinery-condition/): Oil debris monitoring, level sensing and position feedback for wind turbine nacelles and renewable plant, so wear is caught before the crane is booked.
- [Site Assessment and Resource Measurement](https://gillinstruments.com/industries/renewable-energy/site-assessment-resource-measurement/): Three-axis wind measurement, multi-level masts and air density for pre-construction renewable resource campaigns, with UKAS calibration behind the data.
- [Solar Site Monitoring](https://gillinstruments.com/industries/renewable-energy/solar-site-monitoring/): Site irradiance for the performance ratio and wind for the tracker stow decision. Gill sensing for solar and hybrid sites. Speak to our team.
- [Turbulence and Wake Measurement](https://gillinstruments.com/industries/renewable-energy/turbulence-wake-measurement/): Three-axis and research-grade ultrasonic anemometry for wake, terrain-driven shear and flow inclination on wind sites, with UKAS calibration.
- [Wind Turbine Control](https://gillinstruments.com/industries/renewable-energy/wind-turbine-control/): The turbine can only control what it can measure. Gill sensing for renewable energy and power. Speak to our team about your application.
- [Research and Environment](https://gillinstruments.com/industries/research-environment/): Research grade wind and flux measurement at up to 100 Hz for atmospheric science, eddy covariance and long term environmental monitoring.
- [Air quality monitoring](https://gillinstruments.com/industries/research-environment/air-quality-monitoring/): Ultrasonic wind sensors and weather stations for air quality monitoring and analysis.
- [Catchment and Hydrometeorology](https://gillinstruments.com/industries/research-environment/catchment-hydrometeorology/): Optical rainfall measurement and capacitive level sensing for catchment hydrometeorology, with SDI-12 for remote gauges that must survive the storm.
- [Eddy Covariance and Flux Towers](https://gillinstruments.com/industries/research-environment/eddy-covariance/): Years of data depend on fractions of a second. Gill sensing for research and environmental monitoring. Speak to our team about your application.
- [Instruments for pollution and environmental studies](https://gillinstruments.com/industries/research-environment/environmental-pollution-control/): Meteorological instruments for data capture in pollution and environmental studies.
- [Field Campaigns and Portable Deployments](https://gillinstruments.com/industries/research-environment/field-campaigns-portable-deployments/): Compact, low-power weather stations and ultrasonic anemometers for field campaigns, configured quickly and returning a complete record.
- [Local authority air quality monitoring](https://gillinstruments.com/industries/research-environment/local-authority-air-quality-monitoring/): Meteorological instruments for local authority air quality monitoring systems.
- [Reference and Long-Term Monitoring](https://gillinstruments.com/industries/research-environment/reference-long-term-monitoring/): Separable weather stations for reference and long-term monitoring, with WMO-compliant siting, third-party inputs and UKAS calibration history.
- [Transport and Infrastructure](https://gillinstruments.com/industries/transport-infrastructure/): Wind monitoring for bridges, cranes, railways and buildings, plus level and position sensing for vehicles and off-highway equipment.
- [Wind speed and direction measurement on bridges](https://gillinstruments.com/industries/transport-infrastructure/bridge-anemometer/): Wind speed and direction measurement on bridges. Gill sensing for transport and buildings. Speak to our team about your application.
- [Crane Wind Monitoring](https://gillinstruments.com/industries/transport-infrastructure/crane-wind-monitoring/): The lift stops on one number. Make sure it is the right one, and that you can prove it.
- [Gearbox wear monitoring in shore based cranes](https://gillinstruments.com/industries/transport-infrastructure/gearbox-wear-monitoring-cranes/): Gearbox wear monitoring in shore based cranes. Gill sensing for transport and buildings. Speak to our team about your application.
- [Transportation wind speed measurement applications](https://gillinstruments.com/industries/transport-infrastructure/transport-safety/): Transportation wind speed measurement applications. Gill sensing for transport and buildings. Speak to our team about your application.
- [Tunnel ventilation and air flow monitoring](https://gillinstruments.com/industries/transport-infrastructure/tunnels/): Ultrasonic wind sensors for tunnel ventilation at the portal, in ducting and along the bore, with a single-axis tunnel mode and 4-20mA output.

## Support and contact

- [Support: downloads, firmware and technical help](https://gillinstruments.com/support/): Manuals, software, firmware, calibration, warranty and repair for Gill instruments, from first installation through years of service in the field.
- [Calibration and repair](https://gillinstruments.com/support/calibration-and-repair/)
- [Documentation](https://gillinstruments.com/support/documentation/): Manuals, datasheets, quick start guides and output formats for every Gill instrument, free to download and never behind a form.
- [Returns and repairs](https://gillinstruments.com/support/returns-and-repairs/)
- [Technical support](https://gillinstruments.com/support/technical-support/)
- [Warranty, service and repair](https://gillinstruments.com/support/warranty-and-repair/): Warranty terms, return process and repair options for Gill wind sensors, weather stations and level sensors. Request a service or repair.
- [Gill worldwide | International enquiries](https://gillinstruments.com/support/worldwide/): Gill instruments are trusted in more than 150 countries. Send one enquiry for specification, approvals, lead time and the quickest route to supply.

## Contact

- [Contact Gill | Speak to our team](https://gillinstruments.com/contact/): Tell us the measurement and the site and our team will tell you what fits. Quotes, technical questions, service and distributor enquiries in one place.
- [Application enquiry](https://gillinstruments.com/contact/application-enquiry/)
- [Bespoke enquiry](https://gillinstruments.com/contact/bespoke-enquiry/)
- [Distributor application](https://gillinstruments.com/contact/distributor-application/)
- [Speak to our team](https://gillinstruments.com/contact/speak-to-our-team/)

## Company

- [About Gill | Independent British measurement manufacturer](https://gillinstruments.com/about/): Independent since 1985. Gill Group designs and manufactures sensing and measurement technology in Lymington, Hampshire, for customers in over 150 countries.
- [Accreditations and approvals](https://gillinstruments.com/about/accreditations/): Gill's ISO 9001, ISO 14001 and ISO 45001 certifications, ATEX and IECEx manufacturing approvals, UKAS calibration and model-specific product approvals.
- [Careers at Gill](https://gillinstruments.com/about/careers/): Careers at Gill in Lymington, Hampshire: current vacancies, what we offer, and what it is like to work here, from the people who do.

## Datasheets

- [Datasheets](https://gillinstruments.com/resources/datasheets/): Datasheets for every Gill wind sensor, weather station, level sensor and position sensor: specifications, accuracy, outputs and ordering options.
- [AF120 datasheet, issue 2](https://gillinstruments.com/resources/datasheets/af120-datasheet-iss2/): Datasheet: AF120. The published specification: measurements, accuracy, outputs and ordering options.
- [Catch Tank Level Sensor datasheet, issue 3](https://gillinstruments.com/resources/datasheets/catch-tank-level-sensor-datasheet-iss3/): Datasheet: Catch Tank Level Sensor. The published specification: measurements, accuracy, outputs and ordering options.
- [DD1615 Level Display datasheet, issue 5](https://gillinstruments.com/resources/datasheets/dd1615-level-display-datasheet-iss5/): Datasheet: DD1615 Level Display. The published specification: measurements, accuracy, outputs and ordering options.
- [GS12 Ignition Module datasheet, issue 2](https://gillinstruments.com/resources/datasheets/gs12-ignition-module-datasheet-iss2/): Datasheet: GS12 Ignition Module. The published specification: measurements, accuracy, outputs and ordering options.
- [GS8 Ignition Module datasheet, issue 2](https://gillinstruments.com/resources/datasheets/gs8-ignition-module-datasheet-iss2/)
- [GT6 Ignition Module datasheet, issue 2](https://gillinstruments.com/resources/datasheets/gt6-ignition-module-datasheet-iss2/): Datasheet: GT6 Ignition Module. The published specification: measurements, accuracy, outputs and ordering options.
- [HS 100 datasheet, issue 2](https://gillinstruments.com/resources/datasheets/hs-100-iss-2/): Datasheet: HS 100. The published specification: measurements, accuracy, outputs and ordering options.
- [HS 50 datasheet, issue 2](https://gillinstruments.com/resources/datasheets/hs-50-iss-2/): Datasheet: HS 50. The published specification: measurements, accuracy, outputs and ordering options.
- [R3A-100 datasheet, issue 4](https://gillinstruments.com/resources/datasheets/iss-4/): Datasheet: Research. The published specification: measurements, accuracy, outputs and ordering options.
- [LevelDefend datasheet, issue 3](https://gillinstruments.com/resources/datasheets/leveldefend-datasheet-iss3/): Datasheet: LevelDefend. The published specification: measurements, accuracy, outputs and ordering options.
- [LevelLite datasheet, issue 10](https://gillinstruments.com/resources/datasheets/levellite-datasheet-iss10/): Datasheet: LevelLite. The published specification: measurements, accuracy, outputs and ordering options.
- [LevelPro datasheet, issue 5](https://gillinstruments.com/resources/datasheets/levelpro-datasheet-iss5/): Datasheet: LevelPro. The published specification: measurements, accuracy, outputs and ordering options.
- [LevelSlick datasheet, issue 9](https://gillinstruments.com/resources/datasheets/levelslick-datasheet-iss9/): Datasheet: LevelSlick. The published specification: measurements, accuracy, outputs and ordering options.
- [MaxiMet End User Accessories datasheet, issue 2](https://gillinstruments.com/resources/datasheets/maximet-end-user-accessories-iss-2/): Datasheet: MaxiMet End User Accessories. The published specification: measurements, accuracy, outputs and ordering options.
- [MaxiMet GMX200 datasheet, issue 11](https://gillinstruments.com/resources/datasheets/maximet-gmx200-iss-11/): Datasheet: MaxiMet GMX200. The published specification: measurements, accuracy, outputs and ordering options.
- [MaxiMet GMX240 datasheet, issue 8](https://gillinstruments.com/resources/datasheets/maximet-gmx240-iss-8/): Datasheet: MaxiMet GMX240. The published specification: measurements, accuracy, outputs and ordering options.
- [MaxiMet GMX260 datasheet, issue 2](https://gillinstruments.com/resources/datasheets/maximet-gmx260-iss-2/): Datasheet: MaxiMet GMX260. The published specification: measurements, accuracy, outputs and ordering options.
- [MaxiMet GMX300 datasheet, issue 9](https://gillinstruments.com/resources/datasheets/maximet-gmx300-iss-9/): Datasheet: MaxiMet GMX300. The published specification: measurements, accuracy, outputs and ordering options.
- [MaxiMet GMX301 datasheet, issue 9](https://gillinstruments.com/resources/datasheets/maximet-gmx301-iss-9/): Datasheet: MaxiMet GMX301. The published specification: measurements, accuracy, outputs and ordering options.
- [MaxiMet GMX400 datasheet, issue 10](https://gillinstruments.com/resources/datasheets/maximet-gmx400-iss-10/): Datasheet: MaxiMet GMX400. The published specification: measurements, accuracy, outputs and ordering options.
- [MaxiMet GMX500 datasheet, issue 12](https://gillinstruments.com/resources/datasheets/maximet-gmx500-iss-12/): Datasheet: MaxiMet GMX500. The published specification: measurements, accuracy, outputs and ordering options.
- [MaxiMet GMX501 datasheet, issue 12](https://gillinstruments.com/resources/datasheets/maximet-gmx501-iss-12/): Datasheet: MaxiMet GMX501. The published specification: measurements, accuracy, outputs and ordering options.
- [MaxiMet GMX550 datasheet, issue 11](https://gillinstruments.com/resources/datasheets/maximet-gmx550-iss-11/): Datasheet: MaxiMet GMX550. The published specification: measurements, accuracy, outputs and ordering options.
- [MaxiMet GMX551 datasheet, issue 12](https://gillinstruments.com/resources/datasheets/maximet-gmx551-iss-12/): Datasheet: MaxiMet GMX551. The published specification: measurements, accuracy, outputs and ordering options.
- [MaxiMet GMX552 datasheet, issue 3](https://gillinstruments.com/resources/datasheets/maximet-gmx552/): Datasheet: MaxiMet GMX552. The published specification: measurements, accuracy, outputs and ordering options.
- [MaxiMet GMX560 datasheet, issue 4](https://gillinstruments.com/resources/datasheets/maximet-gmx560-iss-4/): Datasheet: MaxiMet GMX560. The published specification: measurements, accuracy, outputs and ordering options.
- [MaxiMet GMX600 datasheet, issue 13](https://gillinstruments.com/resources/datasheets/maximet-gmx600-iss-13/): Datasheet: MaxiMet GMX600. The published specification: measurements, accuracy, outputs and ordering options.
- [MaxiMet GMX603 datasheet, issue 2](https://gillinstruments.com/resources/datasheets/maximet-gmx603/): Datasheet: MaxiMet GMX603. The published specification: measurements, accuracy, outputs and ordering options.
- [MaxiMet Marine Accessories datasheet, issue 2](https://gillinstruments.com/resources/datasheets/maximet-marine-accessories-iss-2/): Datasheet: MaxiMet Marine Accessories. The published specification: measurements, accuracy, outputs and ordering options.
- [MetConnect End User Accessories datasheet, issue 1](https://gillinstruments.com/resources/datasheets/metconnect-end-user-accessories-iss-1/): Datasheet: MetConnect End User Accessories. The published specification: measurements, accuracy, outputs and ordering options.
- [MetConnect One datasheet, issue 2](https://gillinstruments.com/resources/datasheets/metconnect-one-iss-2/): Datasheet: MetConnect One. The published specification: measurements, accuracy, outputs and ordering options.
- [MetConnect THP datasheet, issue 1](https://gillinstruments.com/resources/datasheets/metconnect-thp-iss-1/): Datasheet: MetConnect THP. The published specification: measurements, accuracy, outputs and ordering options.
- [MetPak datasheet, issue 7](https://gillinstruments.com/resources/datasheets/metpak-iss-7/): Datasheet: MetPak. The published specification: measurements, accuracy, outputs and ordering options.
- [MetPak Pro datasheet, issue 9](https://gillinstruments.com/resources/datasheets/metpak-pro-iss-9/): Datasheet: MetPak Pro. The published specification: measurements, accuracy, outputs and ordering options.
- [MetStream MS100 datasheet, issue 4](https://gillinstruments.com/resources/datasheets/metstream-ms100-iss-4/): Datasheet: MetStream MS100. The published specification: measurements, accuracy, outputs and ordering options.
- [Mounting brackets factsheet (WindSonic, MaxiMet, WindObserver), issue B](https://gillinstruments.com/resources/datasheets/mounting-brackets-factsheet-iss-b/)
- [Multifunctional TFT Wind Display datasheet, issue 4](https://gillinstruments.com/resources/datasheets/multifunctional-tft-wind-display-iss-4/): Datasheet: Multifunctional TFT Wind Display. The published specification: measurements, accuracy, outputs and ordering options.
- [Blade Dual Output (PD1356) datasheet, issue 6](https://gillinstruments.com/resources/datasheets/pd1356-dual-output-iss6/): Datasheet: Blade Dual Output (PD1356). The published specification: measurements, accuracy, outputs and ordering options.
- [Blade25 (PD1484) datasheet, issue 7](https://gillinstruments.com/resources/datasheets/pd1484-linear-iss7/): Datasheet: Blade25 (PD1484). The published specification: measurements, accuracy, outputs and ordering options.
- [Blade360 (PD1498) datasheet, issue 7](https://gillinstruments.com/resources/datasheets/pd1498-rotary-iss7/): Datasheet: Blade360 (PD1498). The published specification: measurements, accuracy, outputs and ordering options.
- [Blade60 (PD1508) datasheet, issue 6](https://gillinstruments.com/resources/datasheets/pd1508-linear-iss6/): Datasheet: Blade60 (PD1508). The published specification: measurements, accuracy, outputs and ordering options.
- [R3 100 datasheet, issue 4](https://gillinstruments.com/resources/datasheets/r3-100-iss-4/): Datasheet: R3 100. The published specification: measurements, accuracy, outputs and ordering options.
- [R3 50 datasheet, issue 3](https://gillinstruments.com/resources/datasheets/r3-50-iss-3/): Datasheet: R3 50. The published specification: measurements, accuracy, outputs and ordering options.
- [TruMet PW100 end user accessories datasheet, issue 1](https://gillinstruments.com/resources/datasheets/trumet-pw100-end-user-accessories-iss-1/)
- [TruMet PW100 datasheet, issue 1](https://gillinstruments.com/resources/datasheets/trumet-pw100-iss1/): Datasheet: TruMet PW100. The published specification: measurements, accuracy, outputs and ordering options.
- [WearDetect datasheet, issue 11](https://gillinstruments.com/resources/datasheets/weardetect-datasheet-iss11/): Datasheet: WearDetect. The published specification: measurements, accuracy, outputs and ordering options.
- [WearDetect with Display datasheet, issue 9](https://gillinstruments.com/resources/datasheets/weardetect-with-display-datasheet-iss9/): Datasheet: WearDetect with Display. The published specification: measurements, accuracy, outputs and ordering options.
- [Wind Display Marine datasheet, issue 5](https://gillinstruments.com/resources/datasheets/wind-display-marine-iss-5/): Datasheet: Wind Display Marine. The published specification: measurements, accuracy, outputs and ordering options.
- [Wind Display to WindObserver connection guide](https://gillinstruments.com/resources/datasheets/wind-display-windobserver-connection-guide-issue-1131117/): Datasheet: Wind Display WindObserver Connection Guide. The published specification: measurements, accuracy, outputs and ordering options.
- [Wind Display WindSonic Connection Guide datasheet, issue 1](https://gillinstruments.com/resources/datasheets/wind-display-windsonic-connection-guide-issue-1131117/): Datasheet: Wind Display WindSonic Connection Guide. The published specification: measurements, accuracy, outputs and ordering options.
- [WindMaster HS datasheet, issue 6](https://gillinstruments.com/resources/datasheets/windmaster-hs-iss-6/): Datasheet: WindMaster HS. The published specification: measurements, accuracy, outputs and ordering options.
- [WindMaster datasheet, issue 8](https://gillinstruments.com/resources/datasheets/windmaster-iss-7/): Datasheet: WindMaster. The published specification: measurements, accuracy, outputs and ordering options.
- [WindMaster Pro datasheet, issue 8](https://gillinstruments.com/resources/datasheets/windmaster-pro-iss-8/): Datasheet: WindMaster Pro. The published specification: measurements, accuracy, outputs and ordering options.
- [WindMasterRA datasheet, issue 5](https://gillinstruments.com/resources/datasheets/windmasterra-iss-5/): Datasheet: WindMasterRA. The published specification: measurements, accuracy, outputs and ordering options.
- [WindObserver 65 datasheet, issue 12](https://gillinstruments.com/resources/datasheets/windobserver-65/): Datasheet: WindObserver 65. The published specification: measurements, accuracy, outputs and ordering options.
- [WindObserver 70 datasheet, issue 9](https://gillinstruments.com/resources/datasheets/windobserver-70/): Datasheet: WindObserver 70. The published specification: measurements, accuracy, outputs and ordering options.
- [WindObserver 75 datasheet, issue 11](https://gillinstruments.com/resources/datasheets/windobserver-75/): Datasheet: WindObserver 75. The published specification: measurements, accuracy, outputs and ordering options.
- [WindObserver 90 datasheet, issue 14](https://gillinstruments.com/resources/datasheets/windobserver-90/): Datasheet: WindObserver 90. The published specification: measurements, accuracy, outputs and ordering options.
- [WindObserver II datasheet, issue 10](https://gillinstruments.com/resources/datasheets/windobserver-ii/): Datasheet: WindObserver II. The published specification: measurements, accuracy, outputs and ordering options.
- [WindObserver IS datasheet, issue 12](https://gillinstruments.com/resources/datasheets/windobserver-is/): Datasheet: WindObserver IS. The published specification: measurements, accuracy, outputs and ordering options.
- [WindSonic 60 datasheet, issue 13](https://gillinstruments.com/resources/datasheets/windsonic-60/): Datasheet: WindSonic 60. The published specification: measurements, accuracy, outputs and ordering options.
- [WindSonic 75 datasheet, issue 10](https://gillinstruments.com/resources/datasheets/windsonic-75/): Datasheet: WindSonic 75. The published specification: measurements, accuracy, outputs and ordering options.
- [WindSonic Metal datasheet, issue 17](https://gillinstruments.com/resources/datasheets/windsonic-metal/): Datasheet: WindSonic Metal. The published specification: measurements, accuracy, outputs and ordering options.
- [WindSonic SDI 12 datasheet, issue 7](https://gillinstruments.com/resources/datasheets/windsonic-sdi-12-iss-7/): Datasheet: WindSonic SDI 12. The published specification: measurements, accuracy, outputs and ordering options.
- [WindUltra End User Accessories datasheet, issue 1](https://gillinstruments.com/resources/datasheets/windultra-end-user-accessories-iss-1/): Datasheet: WindUltra End User Accessories. The published specification: measurements, accuracy, outputs and ordering options.
- [WindUltra datasheet, issue 2](https://gillinstruments.com/resources/datasheets/windultra-iss-2/): Datasheet: WindUltra. The published specification: measurements, accuracy, outputs and ordering options.

## Manuals

- [Manuals and guides](https://gillinstruments.com/resources/manuals/): Installation and configuration manuals for Gill instruments: wiring, output formats, commissioning and quick start guides. Free to download.
- [AF120 manual, issue 4](https://gillinstruments.com/resources/manuals/af120-user-manual-iss4/): Manual: AF120. Installation, wiring, configuration and outputs, for engineers working on site.
- [Blade Sensors developer guide, issue 2](https://gillinstruments.com/resources/manuals/blade-sensors-developers-guide-iss2/): Manual: Blade Sensors developer guide. Installation, wiring, configuration and outputs, for engineers working on site.
- [Blade Sensors technical manual, issue 1](https://gillinstruments.com/resources/manuals/blade-sensors-technical-manual-iss1/): Manual: Blade Sensors technical. Installation, wiring, configuration and outputs, for engineers working on site.
- [BladeCom user guide, issue 1](https://gillinstruments.com/resources/manuals/bladecom-user-guide-iss1/): Manual: BladeCom user guide. Installation, wiring, configuration and outputs, for engineers working on site.
- [Condition monitoring starter kit guide, issue 2](https://gillinstruments.com/resources/manuals/condition-monitoring-starter-kit-iss-2/)
- [Condition monitoring starter kit set-up guide, version 1](https://gillinstruments.com/resources/manuals/condition-monitoring-starter-kit-set-up-v1/)
- [GS8 and GS12 manual, issue 4](https://gillinstruments.com/resources/manuals/gs8-gs12-user-manual-iss4/): Manual: GS8 and GS12. Installation, wiring, configuration and outputs, for engineers working on site.
- [GT6 manual, issue 2](https://gillinstruments.com/resources/manuals/gt6-user-manual-iss2/): Manual: GT6. Installation, wiring, configuration and outputs, for engineers working on site.
- [How to set up 2-point operation of an open collector switch output](https://gillinstruments.com/resources/manuals/how-to-2-point-operation-open-collector-switch-output/)
- [How to use an open collector output](https://gillinstruments.com/resources/manuals/how-to-use-an-open-collector-output/)
- [HS-50 and HS-100 manual, issue 4](https://gillinstruments.com/resources/manuals/hs-50-100-iss-4/): Manual: HS-50 and HS-100. Installation, wiring, configuration and outputs, for engineers working on site.
- [Ignition Technology Explained manual, issue 1](https://gillinstruments.com/resources/manuals/ignition-technology-explained/): Manual: Ignition Technology Explained. Installation, wiring, configuration and outputs, for engineers working on site.
- [IS WindObserver User manual, issue 18](https://gillinstruments.com/resources/manuals/is-windobserver-user/): Manual: IS WindObserver User. Installation, wiring, configuration and outputs, for engineers working on site.
- [WindMaster HS manual, issue 4](https://gillinstruments.com/resources/manuals/iss-4-windmaster-hs/): Manual: WindMaster HS. Installation, wiring, configuration and outputs, for engineers working on site.
- [Displays manual, issue 8](https://gillinstruments.com/resources/manuals/iss-8/): Manual: Displays. Installation, wiring, configuration and outputs, for engineers working on site.
- [LevelLite quick start guide, issue 3](https://gillinstruments.com/resources/manuals/levellite-quick-start-guide-iss3/): Manual: LevelLite quick start guide. Installation, wiring, configuration and outputs, for engineers working on site.
- [LevelLite manual, issue 6](https://gillinstruments.com/resources/manuals/levellite-user-manual-iss6/): Manual: LevelLite. Installation, wiring, configuration and outputs, for engineers working on site.
- [LevelPro quick start guide, issue 3](https://gillinstruments.com/resources/manuals/levelpro-quick-start-guide-iss3/): Manual: LevelPro quick start guide. Installation, wiring, configuration and outputs, for engineers working on site.
- [LevelPro manual, issue 6](https://gillinstruments.com/resources/manuals/levelpro-user-manual-iss6/): Manual: LevelPro. Installation, wiring, configuration and outputs, for engineers working on site.
- [LevelSlick quick start guide, issue 5](https://gillinstruments.com/resources/manuals/levelslick-quick-start-guide-iss5/): Manual: LevelSlick quick start guide. Installation, wiring, configuration and outputs, for engineers working on site.
- [LevelSlick manual, issue 7](https://gillinstruments.com/resources/manuals/levelslick-user-manual-iss7/): Manual: LevelSlick. Installation, wiring, configuration and outputs, for engineers working on site.
- [MaxiMet manual, issue 14](https://gillinstruments.com/resources/manuals/maximet-iss-13/): Manual: MaxiMet. Installation, wiring, configuration and outputs, for engineers working on site.
- [MaxiMet Marine manual, issue 3](https://gillinstruments.com/resources/manuals/maximet-marine-iss-3/): Manual: MaxiMet Marine. Installation, wiring, configuration and outputs, for engineers working on site.
- [MetConnect manual, issue 2](https://gillinstruments.com/resources/manuals/metconnect-iss-2/): Manual: MetConnect. Installation, wiring, configuration and outputs, for engineers working on site.
- [MetPak and MetPak Pro base stations manual, issue 3](https://gillinstruments.com/resources/manuals/metpak-metpak-metpak-pro-base-stations-iss-3/): Manual: MetPak and MetPak Pro base stations. Installation, wiring, configuration and outputs, for engineers working on site.
- [MetPak and MetPak Pro manual, issue 3](https://gillinstruments.com/resources/manuals/metpak-metpak-pro-iss-3/): Manual: MetPak and MetPak Pro. Installation, wiring, configuration and outputs, for engineers working on site.
- [MetStream 100 manual, issue 5](https://gillinstruments.com/resources/manuals/metstream-100-iss-5/): Manual: MetStream 100. Installation, wiring, configuration and outputs, for engineers working on site.
- [OMC 140 Installation V1 07 131117 manual](https://gillinstruments.com/resources/manuals/omc-140-installation-v1-07-131117/): Manual: OMC 140 Installation V1 07 131117. Installation, wiring, configuration and outputs, for engineers working on site.
- [OMC 140 Operator V1 04 131117 manual](https://gillinstruments.com/resources/manuals/omc-140-operator-v1-04-131117/): Manual: OMC 140 Operator V1 04 131117. Installation, wiring, configuration and outputs, for engineers working on site.
- [OMC 140 SD logging and wind alarm supplement](https://gillinstruments.com/resources/manuals/omc-140-supplement-sd-logging-wind-alarm-functionality/): Manual: OMC 140 Supplement SD Logging Wind Alarm Functionality. Installation, wiring, configuration and outputs, for engineers working on site.
- [R3 and R3-50 manual, issue 3](https://gillinstruments.com/resources/manuals/r3-3-r-50-iss-3/): Manual: R3 and R3-50. Installation, wiring, configuration and outputs, for engineers working on site.
- [Rain Gauge manual, issue 2](https://gillinstruments.com/resources/manuals/rain-gauge-iss-2/): Manual: Rain Gauge. Installation, wiring, configuration and outputs, for engineers working on site.
- [WearDetect quick start guide, issue 6](https://gillinstruments.com/resources/manuals/weardetect-quick-start-guide-iss6/): Manual: WearDetect quick start guide. Installation, wiring, configuration and outputs, for engineers working on site.
- [WearDetect Thread Adaptors quick start guide, issue 4](https://gillinstruments.com/resources/manuals/weardetect-thread-adaptors-qsg-iss4/): Manual: WearDetect Thread Adaptors quick start guide. Installation, wiring, configuration and outputs, for engineers working on site.
- [WearDetect manual, issue 7](https://gillinstruments.com/resources/manuals/weardetect-user-manual-iss7/): Manual: WearDetect. Installation, wiring, configuration and outputs, for engineers working on site.
- [WindMaster manual, issue 17](https://gillinstruments.com/resources/manuals/windmaster-iss-17/): Manual: WindMaster. Installation, wiring, configuration and outputs, for engineers working on site.
- [WindObserver 65 manual, issue 10](https://gillinstruments.com/resources/manuals/windobserver-65-iss-8/): Manual: WindObserver 65. Installation, wiring, configuration and outputs, for engineers working on site.
- [WindObserver 7075 manual, issue 10](https://gillinstruments.com/resources/manuals/windobserver-7075-iss-8/): Manual: WindObserver 7075. Installation, wiring, configuration and outputs, for engineers working on site.
- [WindObserver 90 manual, issue 5](https://gillinstruments.com/resources/manuals/windobserver-90-iss-5/): Manual: WindObserver 90. Installation, wiring, configuration and outputs, for engineers working on site.
- [WindObserver RH manual, issue 2](https://gillinstruments.com/resources/manuals/windobserver-rh-iss-2/): Manual: WindObserver RH. Installation, wiring, configuration and outputs, for engineers working on site.
- [WindObserverII manual, issue 29](https://gillinstruments.com/resources/manuals/windobserverii-iss-28/): Manual: WindObserverII. Installation, wiring, configuration and outputs, for engineers working on site.
- [WindSet software guide, issue 1](https://gillinstruments.com/resources/manuals/windset-software-guide-iss-1/)
- [WindSonic manual, issue 34](https://gillinstruments.com/resources/manuals/windsonic/): Manual: WindSonic. Installation, wiring, configuration and outputs, for engineers working on site.
- [WindUltra 1416 User manual, issue 2](https://gillinstruments.com/resources/manuals/windultra-1416-user-iss-2/): Manual: WindUltra 1416 User. Installation, wiring, configuration and outputs, for engineers working on site.
- [WindUltra third-party software licences, issue 1](https://gillinstruments.com/resources/manuals/windultra-third-party-software-licences-iss-1/)
- [WindView software guide, issue 1](https://gillinstruments.com/resources/manuals/windview-software-guide-iss-1/)

## Application notes

- [Application notes](https://gillinstruments.com/resources/application-notes/): Real Gill installations explained: what was measured, how it was specified and why it worked. Fifty-two application notes, free to read online.
- [Road & Railway Tunnels](https://gillinstruments.com/resources/application-notes/an0001-road-railway-tunnels/): Application note: Road & Railway Tunnels. A real installation, what was measured and why it worked.
- [WindMasterPro Buoy Mounted of Slovenia](https://gillinstruments.com/resources/application-notes/an0002-windmasterpro-buoy-mounted-of-slovenia/): Application note: WindMasterPro Buoy Mounted of Slovenia. A real installation, what was measured and why it worked.
- [WindMaster for wind turbine site assessment](https://gillinstruments.com/resources/application-notes/an0003-windmaster-for-wind-turbine-site-assessment/): Application note: WindMaster for wind turbine site assessment. A real installation, what was measured and why it worked.
- [MetPak Pro with water temperature and level](https://gillinstruments.com/resources/application-notes/an0004-metpak-pro-with-water-temperature-water-level-measurement/): Application note: MetPak Pro with Water Temperature & Water Level Measurement. A real installation, what was measured and why it worked.
- [WO WS for Wind Turbine control](https://gillinstruments.com/resources/application-notes/an0005-wo-ws-for-wind-turbine-control/): Application note: WO WS for Wind Turbine control. A real installation, what was measured and why it worked.
- [WindSonic used as part of entertainment monitoring](https://gillinstruments.com/resources/application-notes/an0006-windsonic-used-as-part-of-entertainment-monitoring/): Application note: WindSonic used as part of entertainment monitoring. A real installation, what was measured and why it worked.
- [CAP437 North Sea meteorological data](https://gillinstruments.com/resources/application-notes/an0007-cap437-north-sea-meteorological-data-for-wind-temperature-rh-pressure/): Application note: CAP437 North Sea Meteorological data for Wind, Temperature, RH & Pressure. A real installation, what was measured and why it worked.
- [Wind sensors for accurate air quality monitoring](https://gillinstruments.com/resources/application-notes/an0008-accurate-air-quality-monitoring-windsonic-windobserver-windmaster-rese/): Application note: Accurate Air Quality Monitoring WindSonic, WindObserver, WindMaster, Research, MaxiMet & MetPak.
- [Monitoring during emergency conditions](https://gillinstruments.com/resources/application-notes/an0009-monitoring-during-emergency-conditions-using-windsonic-metpak-maximet/): Application note: Monitoring During Emergency Conditions Using WindSonic, MetPak & MaxiMet. A real installation, what was measured and why it worked.
- [Power line monitoring with Gill wind sensors](https://gillinstruments.com/resources/application-notes/an0010-power-line-monitoring-using-windsonic-windobserver-windmaster-maximet/): Application note: Power Line Monitoring using WindSonic, WindObserver, WindMaster & MaxiMet. A real installation, what was measured and why it worked.
- [Wind Measurement on Bridges](https://gillinstruments.com/resources/application-notes/an0011-wind-measurement-on-bridges/): Application note: Wind Measurement on Bridges. A real installation, what was measured and why it worked.
- [Control of Building HVAC Systems](https://gillinstruments.com/resources/application-notes/an0012-control-of-building-hvac-systems/): Application note: Control of Building HVAC Systems. A real installation, what was measured and why it worked.
- [WindSonic & MetPak integrated into OEM product lines](https://gillinstruments.com/resources/application-notes/an0014-windsonic-metpak-integrated-into-oem-product-lines/): Application note: WindSonic & MetPak integrated into OEM product lines. A real installation, what was measured and why it worked.
- [WindMaster and Research in eddy covariance work](https://gillinstruments.com/resources/application-notes/an0015-windmaster-windmasterpro-windmasterhs-and-research-used-in-eddy-covari/): Application note: WindMaster, WindMasterPro, WindMasterHS and Research used in Eddy Covariance & Flux Measurement.
- [WindSonic at Glastonbury for structural & noise monitoring](https://gillinstruments.com/resources/application-notes/an0016-windsonic-at-glastonbury-for-structural-noise-monitoring/): Application note: WindSonic at Glastonbury for structural & noise monitoring. A real installation, what was measured and why it worked.
- [Heathrow Airport sensor network with WindSonic](https://gillinstruments.com/resources/application-notes/an0017-advanced-sensor-network-developed-for-heathrow-airport-incorporates-gi/): Application note: Advanced Sensor Network developed for Heathrow Airport incorporates Gill WindSonic Sensors.
- [Improved safety with weather monitoring instruments](https://gillinstruments.com/resources/application-notes/an0019-improved-safety-with-weather-monitoring-instruments/): Application note: Improved safety with weather monitoring instruments. A real installation, what was measured and why it worked.
- [Wind sensors for container terminal safety](https://gillinstruments.com/resources/application-notes/an0020-windsonic-windobserver-used-for-container-terminal-operational-safety/): Application note: WindSonic & WindObserver used for Container Terminal Operational Safety. A real installation, what was measured and why it worked.
- [MetPak monitoring climate effects on stonework](https://gillinstruments.com/resources/application-notes/an0021-metpak-monitoring-for-weather-climate-effects-on-stone-structure/): Application note: MetPak - Monitoring for weather & climate effects on stone structure. A real installation, what was measured and why it worked.
- [Gill’s Anemometers help to understand forest ecosystems](https://gillinstruments.com/resources/application-notes/an0022-gill-s-anemometers-help-to-understand-forest-ecosystems/): Application note: Gill’s Anemometers help to understand forest ecosystems. A real installation, what was measured and why it worked.
- [Gill wind sensors in the marine market](https://gillinstruments.com/resources/application-notes/an0023-windsonic-windobserver-maximet-metpak-in-the-marine-market/): Application note: WindSonic, WindObserver, MaxiMet & MetPak in the marine market. A real installation, what was measured and why it worked.
- [MaxiMet & MetPak monitoring at Solar Farms](https://gillinstruments.com/resources/application-notes/an0024-maximet-metpak-monitoring-at-solar-farms/): Application note: MaxiMet & MetPak monitoring at Solar Farms. A real installation, what was measured and why it worked.
- [WindSonic monitoring at stadiums](https://gillinstruments.com/resources/application-notes/an0025-windsonic-monitoring-at-stadiums/): Application note: WindSonic monitoring at stadiums. A real installation, what was measured and why it worked.
- [Open real-time data for environmental research](https://gillinstruments.com/resources/application-notes/an0028-publically-accessible-real-time-data-will-empower-all-kinds-of-applied/): Application note: Publically accessible real-time data will empower all kinds of applied environmental research.
- [MaxiMet & MetPak used in agriculture](https://gillinstruments.com/resources/application-notes/an0029-maximet-metpak-used-in-agriculture/): Application note: MaxiMet & MetPak used in agriculture. A real installation, what was measured and why it worked.
- [MetPak As Part Of A Helipad Light Control System](https://gillinstruments.com/resources/application-notes/an0030-metpak-as-part-of-a-helipad-light-control-system/): Application note: MetPak As Part Of A Helipad Light Control System. A real installation, what was measured and why it worked.
- [WindMaster and WindMasterPro RS485 2-Wire Networking](https://gillinstruments.com/resources/application-notes/an0031-windmaster-and-windmasterpro-rs485-2-wire-networking/): Application note: WindMaster and WindMasterPro RS485 2-Wire Networking. A real installation, what was measured and why it worked.
- [WindMasterPro to locate underground water sources](https://gillinstruments.com/resources/application-notes/an0032-windmasterpro-to-locate-underground-water-sources/): Application note: WindMasterPro to locate underground water sources. A real installation, what was measured and why it worked.
- [WindMasterHS assisting with salt spraying efficiency](https://gillinstruments.com/resources/application-notes/an0033-windmasterhs-assisting-with-salt-spraying-efficiency/): Application note: WindMasterHS assisting with salt spraying efficiency. A real installation, what was measured and why it worked.
- [WindObserver – Starring role in “The Wave”](https://gillinstruments.com/resources/application-notes/an0034-windobserver-starring-role-in-the-wave/): Application note: WindObserver - Starring role in “The Wave”. A real installation, what was measured and why it worked.
- [MaxiMet provides measurements to support a solar car race](https://gillinstruments.com/resources/application-notes/an0035-maximet-provides-measurements-to-support-a-solar-car-race/): Application note: MaxiMet provides measurements to support a solar car race. A real installation, what was measured and why it worked.
- [WindSonic used with Solar Tracking Farms](https://gillinstruments.com/resources/application-notes/an0036-windsonic-used-with-solar-tracking-farms/): Application note: WindSonic used with Solar Tracking Farms. A real installation, what was measured and why it worked.
- [WindObserver for Christmas Island stevedoring](https://gillinstruments.com/resources/application-notes/an0037-windobserver-monitors-christmas-island-phosphates-for-stevedore-operat/): Application note: WindObserver monitors Christmas Island Phosphates for stevedore operations. A real installation, what was measured and why it worked.
- [UK Met Office trials AutoNaut to replace weather buoys](https://gillinstruments.com/resources/application-notes/an0038-uk-met-office-trials-autonaut-to-replace-weather-buoys/): Application note: UK Met Office trials AutoNaut to replace weather buoys. A real installation, what was measured and why it worked.
- [GMX531/551 Met Stations for Farms](https://gillinstruments.com/resources/application-notes/an0040-gmx531-551-met-stations-for-farms/): Application note: GMX531/551 Met Stations for Farms. A real installation, what was measured and why it worked.
- [MaxiMet monitors a Hungarian bioethanol plant](https://gillinstruments.com/resources/application-notes/an0041-bioethanol-process-from-pannonia-ethanol-in-hungary-monitored-by-maxim/): Application note: Bioethanol process from Pannonia Ethanol in Hungary monitored by MaxiMet. A real installation, what was measured and why it worked.
- [WindObserver monitoring at nuclear power plants in Sweden](https://gillinstruments.com/resources/application-notes/an0042-windobserver-monitoring-at-nuclear-power-plants-in-sweden/): Application note: WindObserver monitoring at nuclear power plants in Sweden. A real installation, what was measured and why it worked.
- [WEATHERPAK protects the US President](https://gillinstruments.com/resources/application-notes/an0043-weatherpak-protects-the-us-president/): Application note: WEATHERPAK protects the US President. A real installation, what was measured and why it worked.
- [WindSonic single channel tunnel mode 4-20mA](https://gillinstruments.com/resources/application-notes/an0044-windsonic-single-channel-tunnel-mode-4-20ma/): Application note: WindSonic single channel tunnel mode 4-20mA. A real installation, what was measured and why it worked.
- [University of Bristol monitoring bee activity with MaxiMet](https://gillinstruments.com/resources/application-notes/an0045-university-of-bristol-monitoring-bee-activity-with-maximet/): Application note: University of Bristol monitoring bee activity with MaxiMet. A real installation, what was measured and why it worked.
- [WindObserver used at airports worldwide](https://gillinstruments.com/resources/application-notes/an0047-windobserver-used-at-airports-worldwide/): Application note: WindObserver used at airports worldwide. A real installation, what was measured and why it worked.
- [Remote monitoring with the Netronix IoT solution](https://gillinstruments.com/resources/application-notes/an0049-a-new-paradigm-in-remote-monitoring-netronix-s-iot-solution/): Application note: A new paradigm in Remote Monitoring Netronix’s IoT solution. A real installation, what was measured and why it worked.
- [Remote data collection – Meteor Communications](https://gillinstruments.com/resources/application-notes/an0050-remote-data-collection-meteor-communications/): Application note: Remote data collection - Meteor Communications. A real installation, what was measured and why it worked.
- [Remote data collection – Data Monitoring Systems](https://gillinstruments.com/resources/application-notes/an0051-remote-data-collection-data-monitoring-systems/): Application note: Remote data collection - Data Monitoring Systems. A real installation, what was measured and why it worked.
- [Emergency Plume Risk Plotting with Plumecast & WindSonic](https://gillinstruments.com/resources/application-notes/an0053-emergency-plume-risk-plotting-with-plumecast-windsonic/): Application note: Emergency Plume Risk Plotting with Plumecast & WindSonic. A real installation, what was measured and why it worked.
- [Sensor data from remote locations with Rock Seven](https://gillinstruments.com/resources/application-notes/an0055-transmitting-sensor-data-back-from-extremely-remote-locations-rock-sev/): Application note: Transmitting sensor data back from extremely remote locations - Rock Seven. A real installation, what was measured and why it worked.
- [Spray painting control on vehicle production lines](https://gillinstruments.com/resources/application-notes/an0056-spray-painting-control-on-vehicle-production-lines-using-windobserveri/): Application note: Spray Painting Control On Vehicle Production Lines Using WindObserverIS. A real installation, what was measured and why it worked.
- [Remote data collection and alarms with RPR](https://gillinstruments.com/resources/application-notes/an0057-remote-data-collection-local-remote-alarms-using-rpr-weather-file/): Application note: Remote data collection & local / remote alarms using RPR Weather File. A real installation, what was measured and why it worked.
- [Operational wind data for the fire service](https://gillinstruments.com/resources/application-notes/an0058-providing-operational-wind-data-using-windsonic-and-metstream-to-the-f/): Application note: Providing operational wind data using WindSonic and MetStream to the fire service. A real installation, what was measured and why it worked.
- [Share multi-sensor environmental data easily](https://gillinstruments.com/resources/application-notes/an0059-monitor-the-environment-and-share-multi-sensor-environmental-data-easi/): Application note: Monitor the environment and share multi-sensor environmental data easily. A real installation, what was measured and why it worked.
- [Mayflower Autonomous Ship](https://gillinstruments.com/resources/application-notes/an0062-mayflower-autonomous-ship/): Application note: Mayflower Autonomous Ship. A real installation, what was measured and why it worked.
- [Marine DPS – WindObserver](https://gillinstruments.com/resources/application-notes/an0063-marine-dps-windobserver/): Application note: Marine DPS - WindObserver. A real installation, what was measured and why it worked.
- [Early warning of stator wedge failure in wind turbine generators](https://gillinstruments.com/resources/application-notes/an0064-stator-wedge-failure-wind-turbine-generators/): A standard WearDetect sensor in the generator cooling air gives months of warning of loosening stator wedges in wind turbine generators.
- [Oil debris monitoring for renewable energy drivetrains](https://gillinstruments.com/resources/application-notes/an0065-oil-debris-monitoring-renewable-energy-drivetrains/): Using continuous ferrous wear measurement to provide earlier condition information from oil-lubricated machinery

## Brochures

- [Brochures and ebooks](https://gillinstruments.com/resources/brochures/): Range brochures and longer technical reading for Gill wind sensors, weather stations, level sensors and condition monitoring. Free to download.
- [3 Axis Range brochure, issue 5](https://gillinstruments.com/resources/brochures/3-axis-range-iss-5/): Brochure: 3 Axis Range. The range at a glance. Free to download.
- [Catalogue 2026 brochure, issue 8](https://gillinstruments.com/resources/brochures/catalogue-2002-0523-2026-iss-7/): Brochure: Catalogue 2026. The range at a glance. Free to download.
- [Gill Solar Monitoring Solutions brochure, issue 1](https://gillinstruments.com/resources/brochures/gill-solar-monitoring-solutions/): Brochure: Gill Solar Monitoring Solutions. The range at a glance. Free to download.
- [LevelLite brochure, issue 3](https://gillinstruments.com/resources/brochures/levellite-brochure-iss3/): Brochure: LevelLite. The range at a glance. Free to download.
- [LevelPro brochure, issue 1](https://gillinstruments.com/resources/brochures/levelpro-brochure/): Brochure: LevelPro. The range at a glance. Free to download.
- [LevelSlick brochure, issue 2](https://gillinstruments.com/resources/brochures/levelslick-brochure-iss2/): Brochure: LevelSlick. The range at a glance. Free to download.
- [MaxiMet 2024 brochure, issue 3](https://gillinstruments.com/resources/brochures/maximet-iss-3-2024/): Brochure: MaxiMet 2024. The range at a glance. Free to download.
- [Mining Sensor Solutions brochure, issue 1](https://gillinstruments.com/resources/brochures/mining-sensor-solutions-brochure/): Brochure: Mining Sensor Solutions. The range at a glance. Free to download.
- [Rail Sensor Solutions 2025 brochure, issue 1](https://gillinstruments.com/resources/brochures/rail-sensor-solutions-brochure-2025/): Brochure: Rail Sensor Solutions 2025. The range at a glance. Free to download.
- [WearDetect Article Low Speed Drives article, issue 3](https://gillinstruments.com/resources/brochures/weardetect-article-low-speed-drives-iss3/): Brochure: WearDetect Article Low Speed Drives article. The range at a glance. Free to download.
- [WearDetect brochure, issue 3](https://gillinstruments.com/resources/brochures/weardetect-brochure-iss3/): Brochure: WearDetect. The range at a glance. Free to download.
- [WearDetect Industrial Marketplace ebook, issue 2](https://gillinstruments.com/resources/brochures/weardetect-ebook-industrial-marketplace-iss2/): Brochure: WearDetect Industrial Marketplace ebook. The range at a glance. Free to download.

## Certificates

- [Certificates and approvals](https://gillinstruments.com/resources/certificates/): Quality, environmental and safety certificates for Gill Group, including ISO 9001, ISO 14001 and ISO 45001, with the accreditations explained.