MaxiMet GMX 541

MaxiMet GMX 541

with FREE UK Standard Delivery

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The MaxiMet range of compact weather stations is designed and manufactured by Gill Instruments. MaxiMet products use reliable, high quality instruments to provide accurate meteorological information in a wide variety of applications.

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Item Description

Temperature, Humidity, Pressure
A combined instrument mounted inside three double louvered, naturally aspirated radiation shields with no moving parts. The results are high performance across each measurement over long periods of time.

Solar Radiation
An integrated solar radiation sensor/pyranometer. This highly accurate instrument uses a thermal sensor mounted at its base and protected by a single glass dome to record the amount of light in watts per metre2. It is widely used in agro-meteorological applications and for monitoring the performance of solar panels.

Wind speed and direction measurements are provided via an ultrasonic sensor and the addition of an electronic compass provides apparent wind measurements. Average speed and direction together with WMO averages and gust data is also provided. Add GPS (optional) to provide true wind and other features.

The Optical rain gauge supplied provides excellent performance in a low maintenance package. The Optical RG connects via a 20m cable (included).

Temp, Humidity & Pressure
Air Pressure / Temperature
Relative / Absolute humidity
Naturally aspirated UV stable radiation shield
Protection against wind-blown precipitation/dust
Solar Radiation
Complies with ISO 9060 & WMO Guidelines
Output in watts per metre2
180° hemispherical field of view
Records sunshine hours
Integrated Hukseflux LP02 pyranometer
Glass dome
Wind speed & direction
Apparent and true wind (with GPS)
WMO wind averages and gust
GPS (Option)
Height above sea level m
Position of the sun
Solar Noon
MSL pressure
Precipitation (Input)
0.08 mm tip Optical rain gauge (customer selectable)
20m Cable
Solar radiation W/m2
Sunshine hours hrs
Solar Noon
Temperature °C / °F / °K
Relative humidity % Rh
Barometric pressure hPa, mbar, mm Hg, In Hg
Wet bulb temperature °C / °F / °K
Absolute humidity g/m3
Air density kg/m3
Precipitation mm/hr, mm/total, in/hr, in/total
Wind speed m/s, hm/hr, mph, kts, ft/min
Wind direction °
Wind chill °C / °F / °K
True/apparent wind
Angle of Tilt
Outputs RS232, 422, 485 (ASCII), SDI-12, NMEA, MODBUS, Analogue (option)
Wind Speed
Range 0.01 m/s to 60 m/s
Accuracy ± 3% to 40 m/s,
± 5% to 60 m/s
Resolution m/s 0.01
Starting Threshold 0.01 m/s
Sampling Rate 1 Hz
Units m/s, km/hr, mph, kts, ft/min
Wind Direction
Range 0-359°
Accuracy ± 3% to 40 m/s,
± 5% to 60 m/s
Starting Threshold 0.05 m/s
Sampling Rate 1 Hz
Units Degrees
Range -40°C to +70 °C
Resolution 0.1
Accuracy ± 0.3°C @ 20°C
Sampling Rate 1 Hz
Units °C, °F, °K
Range 0-100%
Resolution 1%
Accuracy ± 2% @ 20°C (10%-90% RH)
Sampling Rate 1 Hz
Units % Rh, g/m3
Dew Point
Range -40°C to +70°C
Resolution 0.1
Accuracy ± 0.3°C @ 20°C
Units °C, °F, °K
Sampling Rate 1 Hz
Range 300 to 1100 hpa
Resolution 0.1 hPa
Accuracy ± 0.5 hPa @ 25°C
Sampling Rate 1 Hz
Units hPa, mbar, mmHg, inHg
Measurement type Optical RG
Range 0 to > 300 mm/hr
Precipitation Resolution 0.08 mm (Customer Selectable)
Repeatability 3%
Sampling Rate 1 Hz
Units mm/hr, mm/total, in/hr, in/total
Heating n/a
Output Contact closure via 20m cable to GMX
Global Solar Radiation
Wavelength Sensitivity 300 to 3000 nm
Output Range 0 to 1600 W/m2
Resolution 1 W/m2
DIN Standard ISO 9060 Second Class
Sampling Rate 1 Hz
Units W/m2
Output rate 1/s, 1/min, 1/hr
Digital Comms Modes Serial RS232, RS422, RS485, SDI-12, NMEA, MODBUS, ASCII
Analogue Outputs Available via seperate optional device
Power Supply 5 to 30 Vdc
Power (Nominal) 12 Vdc 64 mA continuous high mode 0.7 mA eco-power mode (1 hour polled)
Environmental Conditions
IP Rating 66
Operational Temperature Range -40°C to +70°C
EMC Standard BS EN 61326 : 2013
FCC CFR47 parts 15.109
CE Marking Yes
RoHS compilant Yes
Weight 0.8 Kg (+1.1 kg Rain Gauge inc 20m Cable)
Origin UK

Precipitation Care & Maintenance
NOTE: the temperature, humidity and barometer sensors are located internally and are not maintainable or replaceable by a user. Consideration should be given to checking the pressure readings against a standard every 12 months and maintaining the temperature and humidity sensor every 12-24 months. If required you can return the MaxiMet to Richard Paul Russell Ltd to check the barometer calibration, please contact us at sales@r-p-r.co.uk for more details.

Case Studies

Our following Case Studies give an overview of how this product applies to different sectors.
Please click on the title below to read the full case study.

Emergency Services
Environmental Monitoring (with SpaceLogger Data Loggers)
Environmental Monitoring (with Wind Systems)
Health & Safety Monitoring
Marine, Ships & Harbours
Outdoor Sports
Tower Cranes
Transport Safety