F-Gas Detector



Housed within an IP54 rugged enclosure, the F-Gas Detector is a toxic gas detector suitable for use in non-hazardous areas such as plant or switchgear rooms. 

In addition to protecting personnel from toxic gas risks, installing the F-Gas detector also helps to reduce the risk of leakage of powerful ‘greenhouse gases’ into the environment.

Accurate and reliable

  • Superior IR sensor technology – provides fast, stable and dependable performance with low maintenance and long life. Unlike cheaper semi-conductor type sensors the F-Gas detector is not affected by other types of gas or changes in temperature or humidity

Simple and versatile

  • Tri-coloured LED’s – indicate the operating status of the detector, and in combination with the function keys, facilitate simple adjustments such as zero and calibration
  • Choice of output signals – the analogue output signal can be set as 4-20mA, 0-20mA, 0-2V, 0-5V or 0-10Vdc for compatibility with virtually any control system

Long life with low maintenance costs

  • No consumable parts – provides many years of service with no requirement to replace the sensor or any other components
  • Simple to test – requires a bi-annual gas check only. Re-calibration is only necessary if readings are out of range
  • IP54 rated enclosure – provides good protection from dust and water ingress in indoor environments

Safety and compliance

  • F-Gas regulations compatible – enables F-Gas suppliers and user to comply with the mandatory European F-Gas regulations
  • Rapid gas leak detection – provides an early warning that gas is leaking and thus maintains system efficiency and reduces expensive gas replacement costs
  • Environmental protection – helps to reduce the risk of leakage of powerful ‘greenhouse gases’ into the environment.


Size151 x 80 x 60mm (5.9 x 3.1 x 2.4ins)
(Total size with cable gland: 151mm x 102mm x 60mm)
Weight0.25kg (8.8oz)
Ingress protectionIP54
Measuring principleNon-dispersive infrared (NDIR)
Range0-1000 ppm
Analogue output4-20mA current source
(can be set to 0-20mA, 0-2V, 0-5V or 0-10V)
Operating temperature-20°C to +40°C
Humidity10 to 95% RH non-condensing
Repeatability+/- 1% FSD
Linearity+/- 2% FSD
Start up time<120 seconds
Response time30 seconds approx
ApprovalsEMC: EN5027

Refrigerent Gas options

Insulating gas:

FGasNameMeasuring range
SF6Sulphur hexaflouride1000ppm


Below is a small selection of the accessories available for the F-Gas Detector.


Calibration adaptor


Enables calibration gas to be applied to the sensor


Calibration gas and regulators


Freon gases and SF6 are available to enable sensor checking and calibration.