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ATEX Portable gas analyser Gas Data GM25-4
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- Small, portable design – easy to hold and operate with one hand
- Measures up to 6 gases simultaneously: CH₄, CO₂, O₂, H₂S, CO, and Hexane (calculated LEL indication included)
- Factory-calibrated infrared sensor for Hexane vapour measurement
- PID correction factor for low-level VOCs
- Integrated pressure and flow rate measurement (atmospheric, differential, borehole flow)
- Storage of two water level readings per borehole using dipmeter
- Manual and programmable unattended datalogging via GM25 Connect app
- Exhaust connection for simple bag sampling
- Robust sensors delivering high accuracy and reliability
- ATEX, IECEx, UKEx certified for safe use in hazardous areas
- Long runtime: 8 hours from a 2–4 hour charge
- Optional vane anemometer (0.7–40 m/s) and thermistor probe (-10 to 100 °C)
- 12-month service interval with 3-year warranty (subject to servicing)
The Gas Data GM25-4 is a fixed-configuration portable gas analyser designed for accurate and reliable measurement of multiple gases on greenfield and brownfield sites, landfill operations, and contaminated land. Combining robust site performance with simple one-hand operation, it captures comprehensive data quickly and efficiently, making it a powerful tool for environmental monitoring and compliance.
Key Features
- Small, portable design – easy to hold and operate with one hand
- Measures up to 6 gases simultaneously: CH₄, CO₂, O₂, H₂S, CO, and Hexane (calculated LEL indication included)
- Factory-calibrated infrared sensor for Hexane vapour measurement
- PID correction factor for low-level VOCs
- Integrated pressure and flow rate measurement (atmospheric, differential, borehole flow)
- Storage of two water level readings per borehole using dipmeter
- Manual and programmable unattended datalogging via GM25 Connect app
- Exhaust connection for simple bag sampling
- Robust sensors delivering high accuracy and reliability
- ATEX, IECEx, UKEx certified for safe use in hazardous areas
- Long runtime: 8 hours from a 2–4 hour charge
- Optional vane anemometer (0.7–40 m/s) and thermistor probe (-10 to 100 °C)
- 12-month service interval with 3-year warranty (subject to servicing)
Applications
- Landfill gas monitoring and control
- Site investigation and contaminated land assessment
- Borehole monitoring for gas flow and composition
- Compliance monitoring for environmental regulations
- Environmental assessments requiring CH₄, CO₂, O₂, H₂S, CO, and VOC measurement
