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MaxiMet GMX100

MaxiMet GMX100 Precipitation Sensor

with FREE UK Standard Delivery

£ inc. VAT

Add WindSonic Connector @ £

• Optical rain gauge
• Lightweight and compact
• Real time output
• Robust construction
• Low power consumption
• No moving parts unlike tipping bucket rain gauges
• Simple and easy to install, 1 unit fit and forget
• Extremely low maintenance
• 24 months warranty

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Item Description

The Gill MaxiMet GMX100 is an extremely compact, robust and lightweight solution for accurately measuring precipitation. The 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 a traditional tipping bucket rain gauge in serial format.

The result is an extremely accurate precipitation sensor that has no moving parts, requires virtually no maintenance and when linked to the WeatherFile website will automatically record data that can be viewed from any internet connected device.

NOTE: The Optical Sensor provides a General Indication only of rainfall levels for use in situations where low maintenance is required. Use a tipping bucket or equivalent with a MaxiMet (e.g. GMX531, GMX550 and GMX551) where reference quality precipitation measurements are required.

Rainfall total
Rainfall intensity
Rainfall Y/N
Emulated tipping bucket
Integrated heater
No moving parts
0.08 mm tip Optical Rain Gauge (customer selectable)
Precipitation mm/hr, mm/total, in/hr, in/total
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
Measurement type Optical
Range 0 to > 300 mm/hr
Precipitation Resolution 0.08 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 seperae optional device
Power Supply 5 to 30 Vdc
Power (Nominal) 12 Vdc 42 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 0.3 Kg
Origin UK

Precipitation Care & Maintenance

Users should clean the plastic dome with a soft, lint free cloth and where necessary with a non-aggressive cleaning solution ideally once a week. Where this is not possible, cleaning should be done during regularly- scheduled visits to the sensor and site. It is recommended that the rain gauge sensor should be cleanred every 3 months as a minimum.

Users can check operation of the rain gauge by performing a simple test of functionality by spraying some water using a mist nozzle similar to that used in many households for watering plants. The MaxiMet rain gauge should register incremental rain fall when sprayed with water.