Gill Instruments Limited

- Model GMX531 - Compact Weather Station



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.

Temperature, humidity, pressure. A combined instrument mounted inside three double lowered, 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. 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.

Precipitation. Ihe Kalyx tipping bucket rain gauge supplied provides excellent performance in tropical or heavy convective precipitation locations. The low power Kalyx connects via a 20m cable (included).


  • Air Pressure / Temperature
  • Relative / Absolute humidity
  • Naturally aspirated UV stable Radiation shield
  • Protection against wind-blown precipitation/dust


  • Complies with ISO 9060 and WMO Guidelines
  • Output in watts per metre*
  • 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
  • Compass


  • Height above sea level m
  • Sunrise/sunset
  • Position of the sun
  • Twilight
  • MSL pressure


  • 0.2mm tip Kaylx rain gauge
  • 20m Cable


  • Solar radiation w/m*
  • Sunshine hours hrs
  • Solar Noon
  • Temperature X/T/*K
  • Relative humidity % Rh, g/m5
  • Barometric pressure hPa, mbai, mm lkj,lnlkj
  • Wet bulb temperature X/°f/°K
  • Absolute humidity g/m1
  • Air density kq/m'
  • Precipitation mm/hr, mmAotal, in/hr, inAotal
  • Wind speed m/s, km/hr, mph. kts, ft/min
  • Wind direction'
  • Wind chill X/T/TC
  • True/apparent wind
  • Angle ofTilt
  • Outputs RS232,4??, 485 (ASCII), SO/-1?, NMFA, M0D8US, Analogue (option)

  • Quality Measurements
  • Lightweight and Robust
  • Low Power Mode
  • Free of Charge Software
  • Gill Proven Reliability
  • Compact Integrated Design
  • Real Time Output
  • Easy Installation
  • Gill Customer Support
  • 2 Year Warranty

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