GMI First Responder

  • • Simple four button operation allowing access to all features
  • • Automatic and manual datalogging

The First Responder detects flammable gas at PPM, LEL and % Vol levels with the addition of carbon monoxide for internal atmosphere monitoring.

An optional external range diffusion probe with high speed semiconductor sensor enables rapid response in detecting small fitting leaks.


  • • Leak survey
  • • Gas escape detection
  • • Carbon Monoxide detection

The GMI First Responder is a combustible gas indicator designed for emergency response technicians in the gas industry.

Key Features

  • PPM , LEL and Volume flammable gas ranges for leak detection and general safety monitoring
  • Carbon Monoxide range for internal atmosphere monitoring
  • Probe mounted Semiconductor Sensor (Range 0 – 10,000 ppm), providing instant response leak detection with audible / visual ‘Ticker’ (Geiger) alarm indication