MaxiMet GMX 400

MaxiMet GMX400 Temperature, Humidity, Pressure & Precipitation Sensor

with FREE UK Standard Delivery

£ inc VAT  ex VAT)

Add WindSonic Connector @ £ ex VAT)

• Temperature, humidity and pressure sensor
     • Naturally aspirated
     • UV stable radiation shield
     • Dust and precipitation protected
• Precipitation sensor
     • Optical rain gauge
     • No moving parts unlike tipping bucket rain gauges
• Lightweight and compact
• Robust construction
• Low power consumption
• No moving parts
• Extremely low maintenance
• 24 months warranty
• Simple and easy to install, 1 unit fit and forget

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Item Description

The Gill MaxiMet GMX400 combines the GMX100 and GMX300 into a single unit. It is extremely compact, robust and lightweight, enabling accurate measurement of precipitation plus a wide range of weather parameters.

Three double-louvered naturally aspirated radiation shields deliver long term highly accurate weather data. Parameters measured include temperature, relative humidity, barometric pressure, absolute humidity, air density and wet bulb temperature. In addition an integrated optical rain gauge senses rainfall as it hits its surface, automatically measuring the raindrops’ size and quantity. It then records the data from which it calculates and formats the output as if it were a traditional tipping bucket rain gauge in serial format.

The result is an extremely durable and cost effective maintenance free weather station, widely used for applications such as agriculture, health & safety, transport, education, energy and building controls. Richard Paul Russell Ltd. can connect the sensor to the WeatherFile website where data can be viewed using any internet connected device and downloaded for detailed analysis in a CSV file format.

Temp, Humidity & Pressure
Air Pressure / Temperature
Relative / Absolute humidity
Naturally aspirated UV stable radiation shield
Protection against wind-blown precipitation/dust
Rainfall total
Rainfall intensity
Rainfall Y/N
Emulated tipping bucket
Integrated heater
No moving parts
0.08 tip Optical Rain Gauge (customer selectable)
Temperature °C / °F / °K
Relative humidity & Rh
Barometric pressure hPa, mbar, mm Hg, In Hg
Absolute humidity g/m3
Precipitation mm/hr, mm/total, in/hr, in/total
Wet bulb temperature °C / °F / °K
Angle of Tilt
Outputs RS232, 422, 485 (ASCII), SDI-12, NMEA, MODBUS, Analogue (option)
GPS (Manual)
Height above sea level m
Position of the sun
Solar Noon
MSL pressure
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
Range 0 to > 300 mm/hr
Precipitation Resolution 0.2 mm
Repeatability 3%
Sampling Rate 1 Hz
Units mm/hr, mm/total, mm/24 hr, in/hr, in/total, in/24 hr
Heating Yes
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 45 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 0.6 Kg
Origin UK