Refrigerant sensor AHU or duct IP66

  • Product Group: 607
  • Product number: 767061

General description

Sensor for Air Handling Unit (AHU) or Duct. It is mounted on the outside of the AHU / Duct, and a pitot type sample tube extends into the AHU /Duct. A very popular product which analyses the air in the AHU for leaks from the evaporator before the air is distributed to the accommodation.


  • Working temperature range -40° C to +50° C (-40° F to +122° F)
  • IP 66 rated
  • Improved sensor housing
  • Improved sensor with filter to minimise false alarms from background gases
  • Improved sensor PCB design with incorporated test points
  • Simplified annual maintenance / testing procedures
  • Field adjustments to the sensor sensitivity can be carried out very easily. Sensitivity can be set as low as 100 ppm
  • Factory supply setting is 500 ppm for low level and 1,000 ppm for high level


  • Crew safety: safeguards crew members from long-term exposure to high levels of leaked refrigerant gas in enclosed spaces
  • Cost saving: helps reduce costs due to accidental loss of refrigerants from unmonitored leaks
  • Environmentally sound solution: reduces the risks of global warming and damaging the ozone layer by instantaneous warning of leaks
  • Class compliant: the leak detection system is compliant with LRS requirements for their EP notation and the DNV Clean notation


Product documentation

Type Document Size
Refrigerant-Leak-Monitor-prodsheet-2014-2.pdf PDF 933 KB

A part of Wilhelmsen Maritime Services,
a Wilh. Wilhelmsen group company