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Home › Products › Weather stations › MaxiMet › GMX551

COMPACT WEATHER STATION

MaxiMet GMX551

Every standard parameter in one compact station.

GMX551 is the most complete of the compact MaxiMet models, adding both rainfall and solar radiation to wind, temperature, humidity and pressure. Like GMX550 it accepts a tipping-bucket rainfall input, so the TruMet PW100 optical rain gauge can drive it.

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Download the datasheet
IP660.8 kg
MaxiMet GMX551 compact weather station

Solar radiation sensor

0 to 1600 W/m²

Ultrasonic wind sensing

0 to 60 m/s, optional heating

Temperature, RH and pressure

Wind, T/H/P and solar together

Rainfall, optical or bucket

Tipping-bucket input for TruMet

WHERE IT SITS

MaxiMet GMX551 in the MaxiMet range

MaxiMet GMX5510 to 60 m/sEvery standard parameter in one compact station.
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 GMX5500 to 60 m/sThe compact station with rainfall, without solar.View MaxiMet GMX550MaxiMet 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 GMX551 is the appropriate configuration where the requirement is wind speed and direction, air temperature, humidity, atmospheric pressure, rainfall, solar radiation, and the parameters it does not carry are provided elsewhere or not needed.

MEASUREMENT

What the MaxiMet GMX551 measures

The MaxiMet GMX551 is configured to measure wind speed and direction, air temperature, humidity, atmospheric pressure, rainfall, 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 GMX551 datasheet. Confirm the current issue before ordering.

Measurement

MeasuresWind speed and direction, air temperature, humidity, atmospheric pressure, rainfall, solar radiation
Wind range0 to 60 m/s
Wind speed range0 to 60 m/s
Air temperatureMeasured
HumidityMeasured
Atmospheric pressureMeasured
RainfallOptical or tipping bucket
Solar radiation0 to 1600 W/m²
Compass2-axis
GPSOptional
OptionsHeating. Optical or tipping-bucket rainfall. Solar radiation fitted. 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

Mechanical

Weight0.8 kg

Approvals and documentation

Datasheet1957-013

COMPARE

MaxiMet GMX551 against GMX550: only what differs

GMX551GMX550
Solar radiation0 to 1600 W/m²Not measured
Weight0.8 kg0.7 kg
Datasheet1957-0131957-020
Show the 5 rows that are the same
GMX551GMX550
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 GMX551

The parts that fit the MaxiMet GMX551: 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 GMX551 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 GMX551 provides that configuration at 0.8 kg.

QUESTIONS

Specification questions about the MaxiMet GMX551

Which parameters does the MaxiMet GMX551 measure?

The MaxiMet GMX551 measures air temperature, humidity, atmospheric pressure, rainfall, solar radiation, compass and GPS.

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

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

What wind speed range does the MaxiMet GMX551 cover?

The MaxiMet GMX551 measures 0 to 60 m/s.

What temperature range does the MaxiMet GMX551 operate over?

The MaxiMet GMX551 operates from -35 °C to +70 °C.

What ingress protection does the MaxiMet GMX551 have?

The MaxiMet GMX551 is sealed to IP66.

Is the MaxiMet GMX551 heated?

Heating is available on the MaxiMet GMX551 as an option.

How much does the MaxiMet GMX551 weigh?

The MaxiMet GMX551 weighs 0.8 kg.

Where can I find the datasheet for the MaxiMet GMX551?

The datasheet is 1957-013. It is linked in the documentation section of this page.

At a glance
Wind range0 to 60 m/s
Solar radiation0 to 1600 W/m²
RainfallOptical or tipping bucket
Compass2-axis
Ingress protectionIP66
Operating temperature-35 °C to +70 °C
Weight0.8 kg
Datasheet1957-013
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