Key Features

  • Flammable, oxygen, toxic and refrigerant gases
  • Compact size
  • Single stage alarm
  • Alarm relays
  • IP64 weatherproof


A fixed gas sensor that meets the requirements for economic and reliable monitoring of gas levels in a wide range of environments and applications. Initially designed for the monitoring of gases within cabins, enclosures and cabinets the addition of an optional mains supply input expanded its use into conventional areas of gas detection covering boiler plant rooms, gas meter houses, battery charger rooms and many other commercial and light industrial applications.

Tech Specs

Power Supply12 to 30v DC – 24v nominal – 160mA
230/115v AC optional
Sensor TypeCatalytic, Electrochemical, Infra red, Semiconductor,
Thermal conductivity
Measuring RangeCombustible gas – LEL, % vol, ppm
Toxic gas – ppm, % vol
Oxygen – % vol
Output4~20mA analogue – option 1~5 volts
250 ohms max load
Connections3 wire – sink/source
Relay ContactsS.P.C.O. per relay – auto reset
RL1 – 3A/230v AC control relay
RL2 – 1A/24v DC signal relay
Alarm LED/SounderAuto reset
75dBs @ 1m
Ingress ProtectionIP64 weatherproof
Temperature-15˚C to 55˚C
Humidity5 to 95% RH non condensing
MaterialABS flame retardant FR40
Finish signal white RAL 9003
Lid ScrewsM4 SS
Field TerminalsScrew type 2.5mm
EntriesRear 5-20mm knock-outs
Bottom 2-20mm knock-outs
Top, Sides – not specified
Dimensions (L x H x D)145mm x 147mm x 65mm 24Vdc Version
145mm x 147mm x 100mm AC version


Carbon Monoxide0~250ppm
Hydrogen Sulphide0~50ppm
Sulphur Dioxide0~10ppm
Nitrogen Dioxide0~10ppm
Hydrogen Cyanide0~25ppm
Nitrogen Monoxide0~100ppm
Hydrogen Chloride0~10ppm
Ethylene Oxide0~25ppm
CO20~2% Vol. & 0~100% Vol.