Gill Instruments

MaxiMet GMX552

ClimateMeteorological Station & Sensors

Weather station with black globe sensor

Compact heat stress monitoring station
Weather station for agriculture heat stres
Low maintenance weather station with WBGT

Quantity

Overview

The MaxiMet GMX552 is a compact, integrated weather station developed by Gill Instruments, notable for being the world’s first to incorporate a black globe sensor for heat stress monitoring. This feature enables real-time calculation of the Wet Bulb Globe Temperature (WBGT), a critical metric for assessing heat stress in various environments, including agriculture, construction, military training, and public events.

In addition to the black globe sensor, the GMX552 measures standard meteorological parameters such as wind speed and direction, ambient temperature, humidity, and atmospheric pressure. It also offers optional GPS integration for enhanced data accuracy and geolocation. The station is designed for low maintenance, operates efficiently in low-power modes, and is suitable for deployment in outdoor settings.

This model is particularly beneficial for applications where monitoring heat-related stress is crucial, providing accurate and timely data to inform safety measures and decision-making processes.

Typical applications

Construction sites and other harsh working conditions
Sports events
Control systems for manufacturing, agriculture and industry
Reporting systems for transport and safety
Low power/solar powered deployments and IoT applications

Key Features

Six measured parameters: Black globe temperature, wind speed & direction, temperature, humidity, pressure, optional GPS function
Outputs WBGT in accordance with ISO 7243:2017 (up to 70°C)
Multiple additional derived parameters
Wet bulb sensor can be added for increased accuracy
High quality, accurate, solid-state sensors
2-axis compass
Optional integrated GPS capability available to provide location, GPS timestamp and a calculation of true wind if the platform is moving

Benefits

Early identification of dangerous working conditions increases worker welfare, reduces risk of sickness and supports long-term productivity
High quality measurement data due to careful sensor selection and extensive design testing and verification
Easy to set-up and integrate using comprehensive software to select the reported and derived parameters and measurement units required
Easy to install and long operational life, due to a compact, robust design and the selection of low maintenance sensors
Suitable for use with battery or solar systems in low power mode

Specifications


WIND SPEED
Range	0-60 m/s
Accuracy	0-10 m/s 0.3 m/s RMSE 10-40 m/s 3% RMSE 40-60 m/s 5% RMSE
Resolution	0.01 m/s
Starting threshold	0.01 m/s
Units of measurement	m/s, km/h, mph, kts, ft/min

WIND DIRECTION
Range	0-360°
Accuracy	0.5 m/s-40 m/s ±3 ° 40-60 m/s ±5
Resolution	1°
Units of measurement	degrees

OUTPUTS
Digital comms modes	RS232, RS422 RS485, SDI-12
Protocols	ASCII, SDI-12 v1.3, NMEA 0183 MODBUS (RTU and ASCII)
Data outputs rates	1/s, 1/min, 1/hour, or polled

POWER SUPPLY

Input voltage

5-30 VDC

Average current consumption @ 12 VDC

26 mA continuous mode (std unit)

+9 mA with GPS option

1.3 mA eco-power mode (no GPS, 1/hr)

MECHANICAL
Construction	UV stabilized thermoplastic
Fittings	Fit to 44.45 mm (1.75 in) pole or mast
Weight	1.29 kg
Connector type	9-way clipper connector

ENVIRONMENTAL
Protection class	IP66
Operating temp.	-35°C to +70°C
Storage temp.	-40°C to +70°C with heating option

STANDARD EQUIPMENT (supplied with product)

MaxiMet product

Mating connector

MetSet software*, to set-up and configure MaxiMet (comms mode, measurement units, reporting intervals, derived parameters, etc.)

MetView software*, to view reported parameters

MaxiMet User Manual*

* Downloadable from Gill Instruments website

OPTIONS
GPS	Available as an option. Enables reporting of location, height, real time clock, true wind (for vehicle mounting applications
Welt bulb sensor	Available as an accessory to offer increased WBGT output accuracy

WARRANTY
Warranty	24 months

AIR TEMPERATURE
Range	-35°C to +70°C
Accuracy	±0.3°C
Resolution	0.1°C
Units of measurement	°C, °F, K

RELATIVE HUMIDITY
Range	0-100% RH
Accuracy	typically, ±2% RH across full range
Resolution	0.1% RH
Units of measurement	% RH, g/m3

BAROMETRIC PRESSURE
Range	300-1250 hPa
Accuracy 900-1100 hPa, 25-40°C	Absolute (typically) ±0.4 hPa Relative (typically) ±0.08 hPa
Resolution	0.1 hPa
Units of measurement	hPa, mbar, mmHg, inHg