Select your gas, pump and battery options from the drop down menu's.  We have specified some standard gas combinations but more are available please call us for additional options.


The PS500 can be tailored to detect up to five gases with its toxic and catalytic sensors, photo ionisation detectors and infrared capabilities.  ‘Plug and Play’ option allows the customer to ‘plug in’ a new board with a different gas range.


The PS500 is particularly useful in noisy environments, featuring a very loud (95dBA) penetrating and distinctive audible alarm together with high visibility large area visual alarm.  Pump, diffusion or both together, allowing pumped sample for pre-entry checking and diffusion in confined space working, thus maximising battery life.  A robust, moulded, rubberised casing guaranteeing Hi-Impact resistance, the PS500 can be used in the most demanding environments.

PS500 5 Gas Monitor - Diffusive or Pumped

Gas Configuration
Pump or Diffusion
    • Ammonia (NH3)
    • Carbon Dioxide (CO2)
    • Carbon Monoxide (CO)
    • Chlorine (CL2)
    • Flammable (LEL)
    • Hydrogen Sulphide (H2S)
    • Infra-Red Flammable (IR LEL)
    • Nitric Oxide (NO)
    • Nitrogen Dioxide (NO2)
    • Oxygen (O2)
    • Phosphine (PH3)
    • Sulphur Dioxide (SO2)
    • Volatile Organic Compound (VOC)



    140 x 85 x 45 mm


    0.4 kg


    0 – 95% RH non-condensing


    -20C to +50C (4F to +122F)


    IEC - Ex ia d IIC T4 Gb

    ATEX - Ex II 2G Ex ia IIC T4 Gb

    CSA - Class I Div 1 Groups ABCD T4, Class 1 Zone 1 Ex ia d IIC T4

    MED - (0038/YY) Modules B & E



    Alkaline (3 AA):
    12 hours’ minimum with pump
    Rechargeable (NiMH):
    12 hours’ minimum with pump



    2 Year Warranty

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All prices shown are excluding VAT and shipping which will be automatically calculated at checkout


Unit 5 Claylands Park, Claylands Road,

Bishops Waltham, Southampton SO32 1QD

United Kingdom


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