ATEX Portable gas analyser Gas Data GM25-3

The Gas Data GM25-3 is a powerful portable gas analyser that combines the functions of three instruments in one device. Designed for landfill and environmental monitoring, it measures gas composition, pressure, and flow with high accuracy, while its robust design and data logging capabilities make it ideal for demanding site operations. Lightweight and easy to use, the GM25-3 delivers reliable results for compliance, control, and efficiency monitoring.

Key Features

• Small, portable design — easy to use with one hand
• Measures up to 5 gases simultaneously (CH₄, CO₂, O₂, H₂S, CO) with world-class sensors
• Hydrogen-compensated CO cell for accurate readings in biogas and landfill applications
• Integrated pressure measurements: atmospheric, static, and differential
• Wellhead gas flow rate measurement
• Data logging via GM25 Connect App (manual or programmable unattended logging)
• Exhaust connection for convenient bag sampling
• Storage of two water level readings per borehole (using dipmeter)
• 12-month service interval with 3-year warranty (subject to servicing)
• ATEX, IECEx, UKEx certified for use in hazardous areas
• Long runtime: 8 hours of operation from a 2–4 hour charge
• Optional accessories: vane anemometer (0.7–40 m/s) and thermistor probe (-10 to 100 °C)

Applications

• Landfill gas extraction and control
• Borehole monitoring
• Site investigations for environmental assessments
• Compliance monitoring for emissions regulations
• Environmental monitoring of methane, CO₂, oxygen, H₂S, and CO