Refrigerant Leak Detection Products

Unsure which refrigerant gas sensor or system you need?
Click the link to select the suitable refrigerant gas sensor by refrigerant gas type and application type.

Non-Aspirated Systems / Automatic Water Shut-Off Valves / BREEAM


  • 15+ year sensor lifetime means low lifetime cost of ownership
  • Compact UK single gang electrical socket size for an aesthetically-pleasing, non-intrusive appearance
  • Simple installation, set-up and commissioning as no calibration required
  • Easy system testing with a plug-in alarm emulation module (no gas required)
  • Immune to poisoning – the sensor is not affected by hairspray, deodorants or other non-target gases
  • Multiple alarm outputs, audible and visual, centralised and BMS monitoring
  • Automatic temperature and humidity compensation
  • Mains and low voltage power options
  • Easy sensor replacement (plug & play) with interchangeable sensor heads for different gas types
  • Helps achieve BS EN378: 2016, BREEAM Pol 01 and F-GAS
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  • Refrigerant gas leak detector for occupied spaces
  • Replaces AT-G-SENSE
  • Easy to install
  • Alarm management
  • Trouble free calibration
  • Low profile, neutral design (three facia plate finishes)
  • Safety and the Environment (helps achieve BREEAM credits Pol 01 and Pol 02 , EN378 and F-Gas)
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  • Mobile app interface for intuitive commissioning and maintenance
  • Plug-and-play pre-calibrated sensor modules
  • Pre-calibrated & temperature compensated sensors for increased reliability
  • On-board audible and visual alarms for refrigerant safety compliance with BS EN378, BREEAM Pol 01 & ASHRAE 15
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AT-G-DETECT (complete systems – discontinued)
Replacement sensors available to special order until January 2022

  • 1-6 sensors connected and powered by a central panel
  • Two levels of concentration alarm
  • Wide range of sensor housings to suit application
  • Detects refrigerants, halocarbons, hydrocarbons, combustible gases and VOC’s
  • 230Vac supply required
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AT-GU (Discontinued)

  • State-of-the-art gas detector which uses a range of sensor head technologies to detect most gases.
  • Determines the gas level present continuously
  • Analogue Outputs: 0-5V, 0-10V, 2-10V or 4-20mA
  • Digital Output: VFC rated 1A at 24Vdc
  • Visual alarm – leak and fault
  • 12/24Vdc supply required
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AT-G-SENSE (Discontinued)

  • Detects all refrigerants and many other gases
  • Helps achieve BREEAM credits, EN378, F-Gas and EH40 Health & Safety guidelines
  • Standalone unit or up to 16 can be linked to a AT-GSC-16 master panel
  • Remote sensor option available
  • 230Vac supply required
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