Gas Detectors

Gas detection is an important part of home safety and an essential part of commercial and industrial safety systems. Gas detectors are also known as gas analysers, gas meters or gas leak detectors, but they all have the same main function of detection of any hazardous gas leaks, oxygen depletion or the presence of emissions (toxic or flammable gases) are found.

Why would you need a gas detector?

A gas detection unit provides you with peace of mind and real-time 24/7 monitoring. They are available as handheld portable gas detectors or can be fixed or mounted to walls and ceilings.

How do they work?

There is a sensor inside the detector that will measure and monitor the concentration of certain hazardous gases that are in the air, and if gases are detected above a certain level which the sensor is set to an alarm will be triggered for evacuation. The alarms can be audible, visual or both, to ensure that all individuals can be alerted for evacuation. The gas detector could also send a signal to the building operations department in industrial/commercial buildings so people are aware of the danger even if they are not in the affected area.

What do they detect?

Gas detectors are categorized by the type of gas they detect; however, some are also multi gas detectors. Within this broad range, they are further defined by the technology they use:

  • Catalytic and infrared sensors detect combustible or flammable gases
  • Electrochemical and metal oxide semiconductor technologies generally detect toxic gases

  • Some common gases that can be detected are:

  • Carbon Monoxide
  • Chlorine
  • Carbon Dioxide
  • Ammonia Hydrogen Sulphide
  • Methane
  • Nitrogen Dioxide
  • Butane Gas
  • Natural Gas
  • How do I maintain my gas detector?

    Most gas detectors are battery operated for safety reasons, so it is important to perform regular checks on battery life and complete maintenance checks, the same way you would with a fire alarm.

    Are there any certifications to be aware of?

    Some gas detectors will offer ATEX certification (Atmospheres Explosibles) which is an EU-regulated standard designed to ensure the safety of equipment or products being used in potentially explosive environments.


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    Viewing 1 - 20 of 23 products
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    Description Price Gases Detected Accuracy Response Time Application ATEX Approval Meter Type Display Type Audible Alarm Visual Alarm Power Source Battery Type Battery Life Dimensions Weight
    RS Stock No. 106-5305
    BrandRS PRO
    SGD292.83
    Each
    units
    Carbon Monoxide ±5 % <30 s Environmental - Handheld Backlit LCD - - Battery 4 x AAA 90 h 156 x 73 x 35mm 250g
    RS Stock No. 144-5342
    BrandRS PRO
    SGD184.17
    Each
    units
    Combustible - 2 s Leak Detection No Handheld LED Yes Yes Battery Li-Ion Polymer - - -
    RS Stock No. 144-5341
    BrandRS PRO
    SGD212.56
    Each
    units
    Combustible - 2 s Leak Detection No Handheld LCD Yes Yes Battery Li-Ion Polymer - - -
    RS Stock No. 174-6574
    BrandRS PRO
    SGD267.43
    Each
    units
    Carbon Dioxide ±1 %, ±3 %, ±5 % - Air Quality Control No Workstation Monitor LED No - Battery Rechargable NiMH - 100 x 48 x 110mm 210g
    RS Stock No. 327-1722
    Mfr. Part No.RD99/RS
    BrandKane
    SGD262.96
    Each
    units
    Refrigerants - 1 s Refrigeration - - LED Yes Yes Battery 9V 8 h 180 x 70 x 35mm 400g
    RS Stock No. 913-2639
    Mfr. Part No.0563 3163
    BrandTesto
    SGD506.80
    Each
    units
    438A, CFCs, HCFCs, HFCs, R134a, R-22, R-404A, R-410A, R-507 - 20 s - - Handheld - Yes Yes Battery 2 x D 16 h 270 x 65 x 65mm 454g
    RS Stock No. 225-375
    Mfr. Part No.0563 3164
    BrandTesto
    SGD853.83
    1 Lot of 1
    Lot(s)
    Refrigerants - 1 s Leak Detection, Refrigeration - - - Yes Yes Battery Rechargeable NiMH 6 h 190 x 57 x 42mm 348g
    RS Stock No. 708-7732
    Mfr. Part No.T3-AGAAZZZZ-A-001-Z
    BrandCrowcon
    SGD777.36
    Each
    units
    Carbon Monoxide, Flammable, Oxygen - 10 (Oxygen) s, 20 (Flammable) s - - Personal LCD - Backlit Yes Yes Battery Rechargeable Lithium-Ion 16 h 114 x 71 x 48mm 295g
    New
    RS Stock No. 215-1861
    Mfr. Part No.SCD41-D-R1
    BrandSensirion
    SGD78.72
    Each
    units
    - 5 % 60 s Environmental - - - - - - - - - -
    RS Stock No. 468-3918
    Mfr. Part No.P01651001Z
    SGD556.98
    Each
    units
    Carbon Monoxide ±5 % 70 s Combustion Appliance - Personal LCD - Backlit Yes - Battery 9V - 237 x 60.5 x 38mm 190g
    New
    RS Stock No. 215-1859
    Mfr. Part No.SCD40-D-R1
    BrandSensirion
    SGD59.43
    Each
    units
    - 5 % 60 s Environmental - - - - - - - - - -
    RS Stock No. 146-1310
    Mfr. Part No.XC100-EN-C009-A
    BrandHoneywell
    SGD67.53
    Each
    units
    Carbon Monoxide - - Domestic Environments - Ceiling, Free Standing, Wall - Yes Yes Battery Li-ion - 100 x 72 x 36mm 133g
    RS Stock No. 910-7848
    Mfr. Part No.0632 3173
    BrandTesto
    SGD297.09
    Each
    units
    Carbon Monoxide ±10 % 40 s Boiler Service, Home Inspections, Weatherization Audits - Handheld LCD - Backlit Yes Yes Battery AAA Micro 150 h - -
    New
    RS Stock No. 219-1951
    Mfr. Part No.LKD 500 CO2 24Vac-dc 0-10000 ppm IP41
    BrandEliwell
    SGD1,885.84
    Each
    units
    Carbon Monoxide -5 → 5 % 28 s - - - LED - - - - - - -
    RS Stock No. 181-0421
    Mfr. Part No.KANE77
    BrandKane
    SGD289.69
    Each
    units
    Carbon Monoxide - - - - Handheld - Yes Yes Battery - - - -
    New
    RS Stock No. 215-1858
    Mfr. Part No.SCD40-D-R1
    BrandSensirion
    SGD43.387
    Each (On a Reel of 60)
    units
    - 5 % 60 s Environmental - - - - - - - - - -
    RS Stock No. 146-1309
    Mfr. Part No.XC70-EN-C016-A
    BrandHoneywell
    SGD50.21
    Each
    units
    Carbon Monoxide - - Domestic Environments - Ceiling, Free Standing, Wall - Yes Yes Battery Li-ion - 100 x 72 x 36mm 133g
    New
    RS Stock No. 219-1952
    Mfr. Part No.LKD 500 CO2 24Vac-dc 0-10000 ppm IP66
    BrandEliwell
    SGD1,958.27
    Each
    units
    Carbon Monoxide -5 → 5 % 28 s - - - LED - - - - - - -
    RS Stock No. 146-1312
    Mfr. Part No.XC100D-EN-C001-A
    BrandHoneywell
    SGD88.91
    Each
    units
    Carbon Monoxide - - Domestic Environments - Ceiling, Free Standing, Wall LCD Yes Yes Battery Li-ion - 100 x 72 x 36mm 133g
    RS Stock No. 181-0420
    Mfr. Part No.KANE700
    BrandKane
    SGD212.44
    Each
    units
    - - - - - Handheld - Yes Yes - - - - -