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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    Description Prix Gases Detected Accuracy Calibrated Response Time Application ATEX Approval Meter Type Display Type Audible Alarm Visual Alarm Power Source Battery Type Battery Life Dimensions
    N° de stock RS 106-5305
    MarqueRS PRO
    146,94 €
    Each
    Unité
    Carbon Monoxide ±5 % - <30 s Environmental - Handheld Backlit LCD - - Battery 4 x AAA 90 h 156 x 73 x 35mm
    N° de stock RS 123-8775
    MarqueRS PRO
    263,00 €
    Each
    Unité
    - - - - Conduit & Pipe Identification, Door & Window Leaks - Handheld LED Yes Yes Battery 9V - 70 x 28 x 255mm
    N° de stock RS 174-6574
    MarqueRS PRO
    134,69 €
    Each
    Unité
    Carbon Dioxide ±1 %, ±3 %, ±5 % - - Air Quality Control No Workstation Monitor LED No - Battery Rechargable NiMH - 100 x 48 x 110mm
    N° de stock RS 144-5342
    MarqueRS PRO
    93,03 €
    Each
    Unité
    Combustible - - 2 s Leak Detection No Handheld LED Yes Yes Battery Li-Ion Polymer - -
    N° de stock RS 144-5341
    MarqueRS PRO
    107,77 €
    Each
    Unité
    Combustible - - 2 s Leak Detection No Handheld LCD Yes Yes Battery Li-Ion Polymer - -
    N° de stock RS 334-2111
    Référence fabricant0632 0316
    MarqueTesto
    242,86 €
    Each
    Unité
    Methane - - - Domestic Environments, Leak Detection - - LED Yes Yes Battery 9V 5 h 190 x 57 x 42mm
    N° de stock RS 920-5497
    Référence fabricant0632 3155
    MarqueTesto
    444,27 €
    Each
    Unité
    Carbon Monoxide ±0.5 (Temperature) °C, ±2.5 (Humidity) %RH, ±5 (CO) ppm - <120 (CO) s Heating System, Ventilation System - Handheld LCD Yes Yes Battery Li-Po 50 h 65 x 40 x 190mm
    N° de stock RS 708-7742
    Référence fabricantGS-AG-B-039-G
    MarqueCrowcon
    445,18 €
    Each
    Unité
    Oxygen - - 10 s Hazardous Area Worker Protection - Personal LCD - Backlit Yes Yes Battery Non rechargeable Lithium 2 yr 90 x 48 x 24mm
    N° de stock RS 710-0731
    Référence fabricantGS-AX-B-001-G
    MarqueCrowcon
    528,18 €
    Each
    Unité
    Oxygen - RSCAL 10 s Hazardous Area Worker Protection - Personal LCD - Backlit Yes Yes Battery Non rechargeable Lithium 2 yr 90 x 48 x 24mm
    N° de stock RS 122-5523
    Référence fabricantT4-ZOCA/RS
    MarqueCrowcon
    607,55 €
    Each
    Unité
    - - - - Industrial Yes Handheld LED Yes Yes Battery Rechargeable Li-ion 24 h 135 x 80 x 35mm
    N° de stock RS 708-7751
    Référence fabricantGS-AZ-B-001-G
    MarqueCrowcon
    445,18 €
    Each
    Unité
    Hydrogen Sulphide - - 20 s Hazardous Area Worker Protection - Personal LCD - Backlit Yes Yes Battery Rechargeable Lithium-Ion 2 yr 90 x 48 x 24mm
    N° de stock RS 710-0734
    Référence fabricantGS-AZ-B-001-G
    MarqueCrowcon
    528,18 €
    Each
    Unité
    Hydrogen Sulphide - RSCAL 20 s Hazardous Area Worker Protection - Personal LCD - Backlit Yes Yes Battery Rechargeable Lithium-Ion 2 yr 90 x 48 x 24mm
    N° de stock RS 327-1722
    Référence fabricantRD99/RS
    MarqueKane
    157,00 €
    Each
    Unité
    Refrigerants - - 1 s Refrigeration - - LED Yes Yes Battery 9V 8 h 180 x 70 x 35mm
    N° de stock RS 913-2639
    Référence fabricant0563 3163
    MarqueTesto
    250,00 €
    Each
    Unité
    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
    N° de stock RS 910-7848
    Référence fabricant0632 3173
    MarqueTesto
    153,00 €
    Each
    Unité
    Carbon Monoxide ±10 % - 40 s Boiler Service, Home Inspections, Weatherization Audits - Handheld LCD - Backlit Yes Yes Battery AAA Micro 150 h -
    N° de stock RS 225-375
    Référence fabricant0563 3164
    MarqueTesto
    400,00 €
    1 Lot of 1
    Lot(s)
    Refrigerants - - 1 s Leak Detection, Refrigeration - - - Yes Yes Battery Rechargeable NiMH 6 h 190 x 57 x 42mm
    N° de stock RS 122-5524
    Référence fabricantT4-ZOZA/RS
    MarqueCrowcon
    511,53 €
    Each
    Unité
    Oxygen - - - Industrial Yes Handheld LED Yes Yes Battery Rechargeable Li-ion 24 h 135 x 80 x 35mm
    N° de stock RS 516-7316
    Référence fabricant3551
    Marque3M
    188,89 €
    1 Box of 5
    Boîte(s)
    Ethylene Oxide ±25 % - - Health Care, Pharmaceutical - Personal - - - - - - -
    N° de stock RS 708-7732
    Référence fabricantT3-AGAAZZZZ-A-001-Z
    MarqueCrowcon
    558,68 €
    Each
    Unité
    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
    N° de stock RS 122-5522
    Référence fabricantT4-HOZA/RS
    MarqueCrowcon
    607,55 €
    Each
    Unité
    Hydrogen Sulphide, Oxygen - - - Industrial Yes Handheld LED Yes Yes Battery Rechargeable Li-ion 24 h 135 x 80 x 35mm