Gassonic Surveyor

The Gassonic Surveyor is a non-concentration based gas detector used to detect leaks from high-pressure systems. Like other ultrasonic gas leak detectors, the Gassonic Surveyor responds to the airborne ultrasound generated from gas releases in open, well ventilated areas, where traditional methods of detection may be unsuitable or dependent on ventilation. Because the Gassonic Surveyor responds to the source of a gas release rather than the dispersed gas, it is unaffected by changing wind directions, gas dilution, and the direction of the gas leak. Further, with its maximum coverage radius of 20 meters, it can supervise a relatively large area with a single device.



  • Advanced stainless steel microphone technology
  • Interface outputs include 4-20 mA analogue and alarm/fault relays
  • Full AISI 316L stainless steel intrinsically safe housing enclosure
  • Compatible with the Gassonic 1701 – Portable Test and Calibration Unit
  • Wide dynamic range (44-104 dB)
  • Local LED indicator
  • Intrinsically safe


  • Offshore and Onshore Oil and Gas Installations
  • Floating Production Storage and Offloading Vessels (FPSOs)
  • Gas Compressor and Metering Stations
  • Underground Gas Storage Facilities
  • Petrochemical Processing Plants
  • Hydrogen Storage Facilities
  • LNG / LPG Trains
  • LNG Re-gasification Plants
  • Gas Turbine Power Plants
  • Refineries
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