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Gill Instruments Ltd

Maximet Marine Weather Station
Home / Our Brands / Gill Instruments / Professional Weather Stations / MaxiMet Marine Weather Stations

MaxiMet Marine Weather Stations

The Gill Instruments MaxiMet Marine series (featuring the GMX260 and GMX560) is an ultra-compact, multi-parameter, solid-state weather station engineered specifically for commercial shipping vessels, offshore platforms, coastal buoys, and ports. Unlike land-based meteorological stations that rely on mechanical cups and vanes, the MaxiMet Marine utilises advanced solid-state ultrasonic technology. This design has zero moving parts to wear out, seize from salt crystallisation, or require constant physical recalibration, providing total environmental awareness in the harshest marine environments.

Core Features & Technical Breakdown

  • IP68 Marine-Grade Sealing: The definitive technical upgrade for this range. While standard weather stations carry an IP66 rating for rain protection, the MaxiMet Marine is fully sealed to IP68 standards. It is entirely dust-tight and engineered to withstand temporary submersions, breaking waves, and high-pressure sea spray without catastrophic internal water ingress.
  • Integrated 6-Axis Digital Compass: Crucial for dynamic marine installations. Vessels and floating buoys are constantly pitching, rolling, and changing headings. The internal 6-axis compass calculates real-time pitch, roll, and tilt data, automatically correcting the raw wind data so the station reports true wind speed and direction relative to the earth, not just the swaying mast.
  • Ultrasonic Wind Measurement: Uses four ultrasonic transducers to calculate wind speed 0 to 60 m/s) and direction 0 to 360°. It records highly responsive gust data with an elite wind speed threshold starting down at a near-motionless 0.01 m/s.
  • Universal Protocol Array: Outputs data via a single, time-stamped digital string. It natively supports standard marine protocols including NMEA 0183 (the universal standard for marine bridge electronics like chartplotters and radars), alongside Modbus (RTU/ASCII), RS232, RS422, RS485, and SDI-12.
  • Dynamic Derived Parameters: Beyond raw values, the internal processor instantly calculates critical marine safety indexes including Dew Point, Wind Chill, Absolute Humidity, Heat Index, and True Wind Vector.

Core Electrical Specifications

  • Input Voltage: 5 to 30 vDC (10 to 30 vDC if utilising the low-power anti-icing heating option).
  • Power Consumption: A highly efficient 25 mA continuous draw at 12 vDC (drops down to a mere 0.7 mA in low-power Eco Mode for battery/solar-powered observation buoys).
  • Connector Interface: Heavy-duty, corrosion-resistant M12 8-way industrial circular plug.

Choosing Your Marine Sensor Profile

Depending on the scope of your vessel or offshore telemetry requirements, the MaxiMet Marine is split into two distinct, specialised hardware profiles. If your infrastructure already features independent temperature and barometric arrays and you solely require motion-corrected, high-accuracy wind tracking, the GMX260 Wind & Compass system provides a streamlined, dedicated solution. For operations requiring full, all-in-one meteorological awareness from a single mast footprint, the GMX560 Multi-Parameter system integrates an added multi-sensor suite to deliver real-time atmospheric pressure, temperature, and relative humidity along the same digital data line.

Select a model below to explore its specific parameter mappings, internal GPS options, and ordering codes:

GMX260 Marine Weather Station for Wind Speed & Direction

GMX260 Marine Weather Station for Wind Speed & Direction

The MaxiMet GMX260 Marine is similar to the GMX200 with an improved environmental protection, IP68, 6-axis compass and M12 Connection. Allowing it to survive harsh weather conditions encountered by buoys and unmanned surface vessels, including short-term immersion and compensation for tilt with pitch and roll data. Wind speed and direction is measured using an ultrasonic sensor above the main housing. Outputs are available as RS232, RS485. SDI12, NMEA and MODBUS.

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GMX560 Marine Weather Station for Wind, Temp, RH & Pressure

GMX560 Marine Weather Station for Wind, Temp, RH & Pressure

The MaxiMet GMX560 Marine is similar to the GMX500 with an improved environmental protection, IP68, 6-axis compass and M12 Connection. Allowing it to survive harsh weather conditions encountered by buoys and unmanned surface vessels, including short-term immersion and compensation for tilt with pitch and roll data. The combined instrument is mounted inside three double louvered, naturally aspirated radiation shields, taking ambient temperature, humidity and pressure readings. Wind speed and direction is measured using an ultrasonic sensor above the main housing. Outputs are available as RS232, RS485. SDI12, NMEA and MODBUS.

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