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Home › Products › Weather stations › MaxiMet › GMX550

COMPACT WEATHER STATION

MaxiMet GMX550

The compact station with rainfall, without solar.

GMX550 is GMX500 with rainfall added, offered as optical or tipping bucket. It is built in UV-stabilised thermoplastic and measures pressure to 1250 hPa. Because it accepts a tipping-bucket input, it is one of the two MaxiMet models that the TruMet PW100 optical rain gauge can drive.

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Download the datasheet
IP660.7 kg
MaxiMet GMX550 compact weather station

Ultrasonic wind sensing

Heating optional, to -40°C

Temperature, RH and pressure

Pressure up to 1250 hPa

Rainfall, optical or bucket

Tipping-bucket input for TruMet

One cable, optional GPS

Single output string, IP66

WHERE IT SITS

MaxiMet GMX550 in the MaxiMet range

MaxiMet GMX5500 to 60 m/sThe compact station with rainfall, without solar.
MaxiMet GMX200Wind speed and directionWind measurement in a compact all-in-one station.View MaxiMet GMX200MaxiMet GMX2400 to 60 m/sWind and rainfall from one compact station.View MaxiMet GMX240MaxiMet GMX300IP66Temperature, humidity and pressure, without the wind element.View MaxiMet GMX300MaxiMet GMX301Solar radiationSolar radiation measurement as a single-parameter node.View MaxiMet GMX301MaxiMet GMX400Optical, 0 to 300 mm/hrAtmospheric measurement with rainfall, no wind element.View MaxiMet GMX400MaxiMet GMX5000 to 60 m/sThe full compact station: wind plus temperature, humidity and pressure.View MaxiMet GMX500MaxiMet GMX5010 to 60 m/sThe compact station with solar radiation added.View MaxiMet GMX501MaxiMet GMX5510 to 60 m/sEvery standard parameter in one compact station.View MaxiMet GMX551MaxiMet GMX552WBGT heat stressCompact weather station with WBGT heat stress measurement, for worker safety.View MaxiMet GMX552MaxiMet GMX6000 to 60 m/sWind, temperature, humidity, pressure and optical rainfall in one compact station.View MaxiMet GMX600MaxiMet GMX6030 to 60 m/sThe compact station with the highest-accuracy rainfall.View MaxiMet GMX603

The MaxiMet GMX550 is the appropriate configuration where the requirement is wind speed and direction, air temperature, humidity, atmospheric pressure, rainfall, and the parameters it does not carry are provided elsewhere or not needed.

MEASUREMENT

What the MaxiMet GMX550 measures

The MaxiMet GMX550 is configured to measure wind speed and direction, air temperature, humidity, atmospheric pressure, rainfall. The MaxiMet GMX550 does not measure solar radiation.

Wind0 to 60 m/s, ultrasonic, no moving parts

HEATING

What the heating option actually does

Heating on the MaxiMet range is transducer-only and draws around 7 W. It keeps the ultrasonic transducers clear, and it is not equivalent to the full-sensor heating offered on WindSonic M or the WindObserver range.

Where the application involves severe or persistent icing, that is a WindObserver requirement rather than a MaxiMet one.

RAINFALL OPTIONS

Optical, tipping bucket, or TruMet

Rainfall on this model is offered as optical or tipping bucket. Because it accepts a tipping-bucket input, it is one of only two MaxiMet models that the TruMet PW100 infrared optical rain gauge can drive, using its one pulse per 0.1 mm output.

SPECIFICATION

Full specification

Figures from the MaxiMet GMX550 datasheet. Confirm the current issue before ordering.

Measurement

MeasuresWind speed and direction, air temperature, humidity, atmospheric pressure, rainfall
Wind range0 to 60 m/s
Wind speed range0 to 60 m/s
Air temperatureMeasured
HumidityMeasured
Atmospheric pressureMeasured
RainfallOptical or tipping bucket
Solar radiationNot measured
Compass2-axis
GPSOptional
OptionsHeating to -40 °C. GPS. Optical or tipping-bucket rainfall. Pairs with the TruMet PW100 through the tipping-bucket input

Environment

Operating temperature-35 °C to +70 °C
Ingress protectionIP66
HeatingOptional, transducer-only, around 7 W, to -40 °C

Mechanical

MaterialsUV-stabilised thermoplastic
Weight0.7 kg

Approvals and documentation

Datasheet1957-020

COMPARE

MaxiMet GMX550 against GMX551: only what differs

GMX550GMX551
Solar radiationNot measured0 to 1600 W/m²
Weight0.7 kg0.8 kg
Datasheet1957-0201957-013
Show the 5 rows that are the same
GMX550GMX551
WindYesYes
Temperature, humidity, pressureYesYes
RainfallOptical or tipping bucketOptical or tipping bucket
Compass2-axis2-axis
Ingress protectionIP66IP66

The two differ by measurement configuration rather than by build. Confirm the parameters the application needs before specifying either. Compare the whole range

ACCESSORIES

Accessories for the MaxiMet GMX550

The parts that fit the MaxiMet GMX550: cable, mounting, set-up kit and spares.

In the box. Every MaxiMet ships with its mating connector (1405-PK-069).

Cables

  • Cable, 4 pair, cut to lengthPart no. 026-03156 Per metre
  • Cable, 4 pair, 15 m, pins fittedPart no. 1405-10-080 15 m

Connectors

  • Spare connectorPart no. 1405-PK-069 One supplied

Mounting

  • Bracket for wall mounting or pole clampingPart no. 1771-PK-115
  • Support tube, 0.5 mPart no. 1405-30-056

Set-up and configuration

  • USB set-up cable, 1.8 mPart no. 1957-10-065 Power and comms over USB

Add-on rain sensors

  • TruMet PW100 optical rain gaugePart no. 5150-0100-000 No moving parts
  • TruMet PW100 integration cable, 20 mPart no. 5150-PK-039 20 m
  • Optical rain sensorPart no. 1957-PK-073
  • Optical rain sensor cable, 20 mPart no. 1957-10-064 20 m
  • Tipping bucket rain gaugePart no. 1957-PK-069
  • Tipping bucket rain gauge cable, 20 mPart no. 1957-10-066 20 m
  • Tipping bucket input connector, 4 wayPart no. 020-06496

Spares

  • Temperature and humidity sensor, serial numbers up to 2233xxxxPart no. 1957-PK-097
  • Temperature and humidity sensor, serial numbers 2234xxxx onwardsPart no. 1957-PK-098

Order accessories with your sensor or on their own. Quote the part number when you get in touch. See the accessories datasheet

Get expert advice

BEFORE YOU SPECIFY

Is the MaxiMet GMX550 the correct configuration?

Before specifying, confirm:

  • the parameters the application actually requires
  • whether wind is needed at this location or measured elsewhere
  • the operating temperature and whether heating is required
  • the ingress protection the installation demands
  • the mounting arrangement and available space
  • the interface and output the receiving system expects

If those match the specification above, the MaxiMet GMX550 provides that configuration at 0.7 kg.

QUESTIONS

Specification questions about the MaxiMet GMX550

Which parameters does the MaxiMet GMX550 measure?

The MaxiMet GMX550 measures air temperature, humidity, atmospheric pressure, rainfall, compass and GPS.

What is the difference between the MaxiMet GMX550 and the GMX551?

The GMX551 adds solar radiation, 0 to 1600 W/m², which the GMX550 does not measure. The GMX550 weighs 0.7 kg against 0.8 kg for the GMX551.

Which parameters does the MaxiMet GMX550 not measure?

The MaxiMet GMX550 does not measure solar radiation.

What wind speed range does the MaxiMet GMX550 cover?

The MaxiMet GMX550 measures 0 to 60 m/s.

What temperature range does the MaxiMet GMX550 operate over?

The MaxiMet GMX550 operates from -35 °C to +70 °C.

What ingress protection does the MaxiMet GMX550 have?

The MaxiMet GMX550 is sealed to IP66.

Is the MaxiMet GMX550 heated?

Heating is available on the MaxiMet GMX550 as an option.

What is the MaxiMet GMX550 made from?

UV-stabilised thermoplastic.

At a glance
Wind range0 to 60 m/s
RainfallOptical or tipping bucket
Compass2-axis
Ingress protectionIP66
Operating temperature-35 °C to +70 °C
Weight0.7 kg
Datasheet1957-020
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