Gas Measurement Instruments - GMI

Detection, Protection, Innovation

PPM Gasurveyor

Key Product Features

  • Fast response search mode
  • Automatic hydrocarbon range selection
  • Simple 2-button operation
  • Calibrated via IR link to GMI Auto Test Calibration Unit

The ppm Gasurveyor 500 compliments the Gascoseeker 2-500 with a similar performance, measuring % LEL and % volume flammable hydrocarbons, but with the addition of ppm ranges for all aspects of leak detection. The high sensitivity parts per million (ppm) range is enhanced by the ppm search range with higher sensitivity and faster response.

In accordance with the Gascoseeker-500, the ppm Gasurveyor-500 has the following additional features:

  • Automated zero during start-up
  • Manually selectable ppm and search ranges.

The ppm Gasurveyor-500 is easy to use, with operator training being conducted quickly and it is also fully compatible with our range of calibration software and equipment.

Call our sales team today on +44 (0) 141 812 3211.

  • Fast response search mode to locate ppm level leaks very quickly
  • Automatic hydrocarbon range selection for LEL and Vol %
  • Manual selection of ppm and search mode
  • Simple 2-button operation, allowing user access to all features
  • Automatic zero
  • Audio/visual Geiger function (ticker) for leak detection
  • Hydrocarbon resolution to equivalent of 5 ppm methane
  • Accurate, robust and extremely reliable
  • Integral pump with flow-path protected by water filter
  • Rugged carbon loaded polypropylene case, sealed to IP54 rating and suitable for outdoor use
  • LCD with backlighting, which displays the current gas readings (in both digital and analogue format), together with operational and status information
  • Can be checked/calibrated via an infra-red link to GMI Auto Test Calibration Unit.
  • Comprehensive range of accessories, including swan necked probe, bellows cup probe, etc.
  • ATEX approved

Measuring Ranges




Power Supply

Sampling System

Physical Properties

  • Leak detection
  • Bar hole survey
  • Gas escape detection
  • Hot work permitting
  • Leak source detection