MaxiMet Compact Weather Station

MaxiMet Compact Weather Station

Compact, integrated multi-sensor weather station delivering high-quality meteorological measurements with minimal maintenance and low power consumption.

Gill Instruments

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Description

MaxiMet is a compact, integrated weather station from Gill Instruments, combining multiple high-quality meteorological sensors into a single, low-maintenance unit. Designed for a wide range of environmental monitoring applications, MaxiMet delivers reliable, accurate data with minimal servicing.

Key Features

  • High quality sensors for accurate meteorological measurements
  • Configurable single line output for easy integration
  • Low power mode for remote and off-grid deployments
  • Minimal maintenance with no moving parts on wind measurement
  • Integrated multi-sensor design in a compact housing
  • Optional heating for operation in harsh winter conditions
  • Comprehensive technical support from Gill Instruments

Output Protocols

RS232, RS422, RS485, SDI-12, MODBUS, NMEA. Weatherproof to IP66 (IP66/IP68 for marine models).

Typical Applications

  • Weather observation and meteorological networks
  • Marine and offshore applications
  • Solar plant performance monitoring (IEC 61724-1)
  • Pollution monitoring and air quality
  • Horticulture and agriculture
Measurement
Available parametersWind speed and direction, air temperature, relative/absolute humidity, pressure, precipitation, solar radiation, GPS coordinates / MSL pressure / true wind / clock / longitude and latitude / sunrise / sunset / twilight, ground speed, compass, 2D coordinate/apparent wind, location, height above sea level, averaging (WMO), gust (WMO), air density, barometric pressure, wet bulb, dew point, wind chill, sensor status, heat index
Wind speed range0–60 m/s (216 km/h)
Wind direction range0–360°
Wind speed accuracy±0.3 m/s RMSE (0–10 m/s); ±3% RMSE (10–40 m/s); ±5% RMSE (40–60 m/s)
Wind direction accuracy±3° (0.5–40 m/s); ±5° (40–60 m/s)
Wind speed resolution0.01 m/s
Wind direction resolution1°
Air temperature accuracy±0.3°C (typical)
Air temperature resolution0.1°C
Relative humidity range0–100% RH
Relative humidity accuracy±2% RH (typical)
Measurement principle (wind)Ultrasonic, no moving parts (Gill WindSonic technology)
Models in familyGMX200, GMX240, GMX260 (Marine), GMX300, GMX301, GMX400, GMX500, GMX501, GMX550, GMX551, GMX552 (Heat Stress), GMX560 (Marine), GMX600, GMX603 — parameter set varies by model
Heating optionAvailable on GMX500/501/550/551/600 for low-temperature performance
GPS optionAvailable across the range
CompassStandard on most models; 6-axis compass on Marine GMX260/GMX560
Outputs
Output protocolsRS232, RS422, RS485, SDI-12, MODBUS, NMEA
Eco ModeLow-power Eco Mode included on all options
Power Requirements
Power supply5–30 V DC (typical; varies by model)
Power supply with heating10–30 V DC (heated models)
Typical current draw~24 mA @ 12 V DC (GMX500 representative); higher with heating option
Environmental
Operating temperature-40°C to +70°C (with heating option; varies by model)
Protection ratingIP66 across all MaxiMet models; IP66 and IP68 on MaxiMet Marine GMX260 and GMX560
ConstructionCompact integrated multi-parameter housing; corrosion-resistant
Certification & Compliance
StandardsMeasures meteorological and environmental parameters to international standards; Solar plant performance in adherence to IEC 61724-1 (2021)
WMOWMO-compliant averaging and gust calculation
EU & UK Declaration of ConformityAvailable — see Gill Instruments downloads page

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