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Gas Leak Detection

Gas leak detection alarm panels.

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  • 30 years experience
  • Manufactured in the UK
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Choose between single or multizone gas leak detection alarm panels.  Connect individual or multiple gas sensors which have been calibrated to detect a specific gas.  Constantly monitor for Carbon monoxide, Chlorine, Hydrogen, Natural Gas (Methane), Ammonia, Refrigerant, Carbon Monoxide.  Contact us to check if we can monitor a gas not listed here.

Gas leak detection products

The GasHunter 1 is a single zone gas leak detector. These alarm panels have the capability to detect the presence of a variety of different gases including refrigerant R134a and R410a.

A multizone alarm panel designed to detect the presence of a range of different gases using leak detection sensors installed in areas where a leak may go undetected.

GasHunter Main Picture 1 300x213

The Gas-Hunter alarm panels from Envirotech Alarms Ltd, have the capability to detect the presence of refrigerant gas and help meet the requirements of BREEAM POL01 for reducing the impact of greenhouse gas emissions resulting from leaks. Ideal for installing on external condensers, AHUs condensing units, compressor housings and chillers.

Adjustable alarm thresholds allow for multi level settings enabling staged alarm settings to give pre-alarm and a full alarm monitoring.

A single or series of gas detecting sensors can be connected to each zone of the alarm panel. The sensors are mounted in any area where refrigerant gases are used and monitor continuously for the presence of gas. In the event of a leak, the gas will be detected immediately and the alarm panel will show which zone has the problem.

A single or series of gas leak detection sensors can be connected to the alarm panel. The sensors are mounted in any area where refrigerant gases are used and monitor continuously for the presence of gas. In the event of a leak, the gas will be detected immediately and the alarm panel will trigger.

Where systems using refrigerants are contained in a moderately air tight enclosure (or a mechanically ventilated plant room), and an automated permanent refrigerant leak detection system is installed covering high-risk parts of the plant OR where a refrigerant leakage/charge loss detection system is specified, which is not based on the principle of detecting or measuring the concentration of refrigerant in air.

Simple uncomplicated system for gas detection.

Can detect refrigerant gases.

Helps meet the requirements of BREEAM POL01.

Volt free relays can be used to switch off valves.

Gas leak detection alarm panels

A Gas Leak Detector multizone alarm panel designed to detect the presence of refrigerant gases and help meet the requirements of BREEAM POL01. Alarm panels available as standard in 2, 4, 8, 16 and 32 zones.

The Gas-Hunter refrigerant leak detection alarm panel is designed to help meet the requirements of BREEAM POL01. The aim of this is to reduce the impact of greenhouse gas emissions arising from leaks of refrigerant gases from a buildings cooling system. The sensor is capable of continuously monitoring the atmosphere in the area local to equipment containing refrigerant gas. Usually located in plant rooms, data centres or at the base of a riser containing the pipe work supplying the refrigerant gas. A BREEAM point is available where it can be demonstrated that the refrigerants are contained in a moderately air tight enclosure with a permanent gas leak detection system installed. It is also required to automaticaly shutdown the refrigerants in the event of a leak with the gas having a separate storage tank (or heat exchanger) fitted where it can be pumped.

Product Features

  • A Gas Leak Detector multizone alarm panel designed to detect the presence of refrigerant gases.
  • Helps to meet the requirements of BREEAM POL01.
  • Alarm panels available as standard in 2, 4, 8, 16 and 32 zones.
  • Single and dual level gas leak detection.
  • Comes with individual zone relays as standard, to allow connection to the BMS, diallers and beacon/sounders.

Gas Leak Detection Sensors

Typical Gas Leak Detection Sensors applications include:

  • Detection of refrigerant gases with our ammonia sensor but also: Carbon Dioxide, Hydrocarbons, Halocarbons – HFCs, HCFCs, CFCs.
  • Detection of combustible gases such as: Methane, LPG, Propane, Butane, and Hydrogen.
  • Detection of toxic gases such as: Carbon Dioxide and Ammonia in refrigeration, Hydrogen Sulphide in sewage treatment and Carbon Monoxide in underground car parks.
  • Detection of volatile Organic Compounds such as: Acetone, Benzene, Carbon Tetrachloride, Chloroform, Ethanol, Toluene, Trichloroethylene.

The Gas Sensor (GS) is a state-of-the-art fixed gas detector that can detect a wide range of different gases. It is a high-specification product available at a competitive price and it offers customers absolute confidence that both safety and compliance requirements are met or exceeded. Ideal for: commercial/industrial refrigeration, chiller & plant rooms, supermarkets, underground car parks, boiler & machinery rooms, food ripening/storage processing, hospitals, schools, chemical storage rooms, greenhouses, water/waste treatment.

Product Features:

  • Independent gas sensing device.
  • 2 stage alarm output for pre-alarm and high alarm alerts.
  • Connects to the GasHunter alarm panel range.
  • Helps to meet the requirements of BREEAM POL01.
  • Detects refrigerant gases

The standard sensor enclosure, IP41, is suitable for applications in normal conditions and in facilities with low levels of dust or moisture.

This sensor enclosure is typically used in plant rooms, machinery rooms, and cold rooms.

The standard models can be used in atmosphere where temperature ranges between -20°C to +50°C (+40°C electro chemical sensor).