GMI Gasurveyor 3-500
GMI Gasurveyor 3-500

GMI Gasurveyor 3-500

£1,653.60 (inc. VAT)

The Gasurveyor 3-500 compliments the Gascoseeker with a similar performance, measuring % LEL and % volume flammable hydrocarbons,with the addition of the following features: automated zero during start-up, gas/air purge mode, optional rechargeable batteries and option of gas alarm.

The two-button operation means the Gasurveyor 3-500 is easy to use and operator training can be conducted quickly. The rugged design enables the Gasurveyor 3-500 to be used in harsh environments.

Gasurveyor 3-500 Features

  • Automatic range selection
  • Simple 2-button operation, allowing user access to all features
  • Automatic zero
  • Gas/air purge mode
  • Resolution to equivalent of 50 ppm
  • Accurate, robust and extremely reliable instrument
  • 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 back lighting, 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, without opening the instrument
  • Optional rechargeable batteries
  • Optional gas alarms
  • Optional calibration gases
  • Comprehensive range of accessories
  • ATEX approved

What you get with the Gasurveyor 3-500

  • Gasurveyor 3-500 Carrying Case
  • Standard Probe
  • Probe Handle Assembly
  • Sample Line Adapter
  • 2 x Packs of Cotton Filters
  • Harness
  • 4mm Hex Driver
  • 1m Clear Sample Line
  • User Handbook


  • Leak detection
  • Bar hole survey
  • Gas/air purge
  • Gas escape detection
  • Petroleum installations
  • Hot work permitting
  • Confined space (only hydrocarbon gas)

 Click here for the Testo 340 data sheet