The Gas-Pro portable multi gas detector offers detection of up to 5 gases in a compact and rugged solution. It has an easy-to-read top mount display making it easy to use and optimal for confined space gas detection.

    An optional internal pump, activated with the flow plate, takes the pain out of pre-entry testing and allows Gas-Pro to be worn either in pumped or diffusion modes.


    User Friendly

    • Top Mount Display – makes it easy to read at a glance
    • Simple Single Button Operation – can be used whilst wearing gloves
    • Intuitive Functionality – reduces training time


    • Monitor 5 Gases From Many Different Options – detect gases such as Hydrogen Sulphide, Carbon Monoxide and Oxygen Depletion while offering multiple uses within one compact detector
    • Pumped And Diffusion Solutions
    • Multiple Languages
    • Automatic Fail-Safe Flow Plate Recognition – takes away the pain of pre-entry testing
    • Specific And Unique Pre-Entry Check (PEC) Mode


    • Reliable Lithium-Ion Battery – provides over 14 hr use from a 7.5 hr charge
    • Water And Dust Resistant To IP65 And IP67 – provides effective confined space gas detection, even in the harshest environments
    • Bump And Calibration Reminders – Full compliance


    Size43 x 130 x 84mm (1.7 x 5.1 x 3.3ins)
    Weight309g 4 gas (10.8oz)/ 340g pumped (11.9oz)

    333g 5 gas (11.7oz)/ 362g pumped (12.7oz)

    AlarmsAudible >95dB @ 30cm (98dB @30cm in loud mode)
    Visual – all angle dual red/blue LEDs
    Vibrating alert
    DisplayTop mount for ease of view with dual colour backlight (green/red)
    Data logging125hr at 10-second intervals (45,000 logs)
    Event loggingAlarm, over range, calibration, bump, on/off, TWA, 1000 events
    BatteryRechargeable Li-ion, >14hr (13 hours pumped operation) based on CH4, O2, H2S, CO
    Typical charge time 7.5hr
    SamplingInternal pump as option
    Operating temperature-20°C to +55°C (-4°F to +131°F)
    Storage -20°C to +65°C (-4°F to +149°F)
    Humidity10 to 95% RH+
    Ingress protectionIndependently tested to IP65 and IP67
    ApprovalsIECEx: Ex db ia IIC T4 Gb Tamb -20°C to +55°C
    ATEX: II 2 G Ex db ia IIC T4 Gb Tamb -20°C to +55°C
    UL: Class 1, Division 1, Groups A, B, C, and D UL 913, UL 60079-0 and UL 60079-11
    INMETRO: Ex db ia IIC T4 Gb Tamb -20°C to +55°C
    Marine Equipment Directive: MED 1500009
    ComplianceFCC and CE. Complies with EMC Directive 2014/30/EU, EN50270 and EMC FFC CFR 47 Part 15, ICES-003
    InterfaceData connection for gas test solutions and direct to PC
    ChargingDirect connection to multi-regional power supply
    Vehicle charger adaptor
    Desktop cradle
    USB power and communications lead
    Crowcon Connect Compatible?Yes


    Gases and Ranges

    GasRangeTypical AlarmsResolution
    Ammonia (NH3) 0-100ppm25ppm1ppm
    Ammonia (NH3)0-1000ppmN/A1ppm
    Carbon Dioxide (CO2) 0-5% vol. 0-5% vol. 0.01% vol.
    Carbon Monoxide (CO) 0-2000ppm 30ppm1ppm
    Carbon Monoxide (CO) 0-500ppm 30ppm1ppm
    Carbon Monoxide
    (Hydrogen Filtered)
    Chlorine (Cl2) 0-5ppm0.5ppm0.1ppm
    Dual toxic (CO-H2S)H2S 0-100ppm
    CO 0-500ppm
    Flammable 0-100% LEL 20% LEL 1% LEL
    Hydrogen (H2) 0-1000ppm N/A 1ppm
    Hydrogen Sulphide (H2S) 0-100ppm 5ppm 1ppm
    Nitrogen Dioxide (NO2) 0-20ppm 1ppm 0.5ppm
    Oxygen (O2) 0-25% vol. 19.5% / 23.5% vol. 0.1% vol.
    Ozone (O3) 0-1ppm 0.1ppm 0.01ppm
    Sulphur dioxide (SO2) 0-20ppm 1ppm 0.1ppm
    Chlorine dioxide (ClO2) 0-1ppm 0.1ppm 0.1ppm
    Nitric oxide (NO) 0-100ppm 25ppm 1ppm


    Below is a small selection of the accessories available for the Gas-Pro.

    1m reactive gas tubing


    1m reactive gas tubing

    Gas-Pro CSE Kit Case


    Hard shell case including foam insert with space for Q-Test, 34 or 58ltr cylinder, power and comms cable, drop line, Gas-Pro, flow plate, filters, chest harness and straps and instructions – contents not included.

    Gas-Pro Hard shell case


    Includes custom foam insert with space for standard items – contents not included.

    Sampling tube


    Compatible sampling tube for Gas-Pro. Select length from list and whether standard or low adsorption material for reactive gases. All include tube insert to enable attachment to flow plate.

    Sampling Tube Ball Float Probe


    Connects to sampling tube to protect from water being drawn up when sampling in potentially problematic locations.

    Tube insert pack


    Replacement inserts to allow connection of sampling tube to Gas-Pro flow plate. Box of 10.

    Elbow tube insert pack


    90 degree inserts to reduce protrusion when connecting sampling tube to Gas-Pro flow plate. Box of 10.

    Hand aspirator bulb


    For manual gas sampling. Use with appropriate flow plate and sampling tube.

    Water trap and spare filters


    Protects detector sensors and pump from particles and moisture. Includes place of 10 replacement filter elements.

    Chest harness plate


    Enables detector to be worn on the chest or over the shoulder. Use with straps AC0507 or AC0508.

    Chest harness straps


    Set of 2 straps which in combination with the chest harness plate enable the detector to be worn on the chest.

    Shoulder Single strap


    Single straps which in combination with the chest harness plate enable the detector to be worn over the shoulder.

    6m Drop line


    6m Drop line to enable pre-entry checks. Includes clip to attache to D-loop on detector.

    Gas-Pro un-pumped flow plate


    Replacement flow plate for un-pumped Gas-Pro units.

    Gas-Pro Pumped flow plate


    Replacement flow plate for pumped Gas-Pro units.

    Multiregion power lead and supply


    Gas-Pro charger cradle


    Desk or wall mounted cradle for charging Gas-Pro.

    USB communications lead


    Enables communication with PC (non charging).

    Vehicle charging adapter


    Provides power from 12/24V vehicle outlet sockets. Use with CH0106.





    Power and Communication Cables

    Quick Start QSG


    User Manual



    Basic Operation:


    Includes: Switching Gas-Pro on and sensor zero. Duration: 1m:11secs

    Watch video


    Includes: Explanation of Gas-Pro alarm display. Duration: 49secs

    Watch video

      Home screen

    Includes: Gas level display home screen. Duration: 32secs

    Watch video


    Includes: Switching Gas-Pro off. Duration: 21secs

    Watch video


    Includes: Using the Gas-Pro cradle charger and charging lead. Duration: 33secs

    Watch video


    Includes: Activating the display backlight. Duration: 19secs

    Watch video

    Advanced Features:

      Flow plate

    Includes: Fit and remove the gas flow plate on Gas-Pro’s with internal pumps. Duration: 44secs

    Watch video

      Pre-Entry Check

    Includes: Conduct pre-entry gas checks for confined spaces using Gas-Pro. Duration: 1m:18secs

    Watch video

      Quick view

    Includes: View status information without switching Gas-Pro on. Duration: 29secs

    Watch video


    Includes: View average toxic gas exposure measurements. Duration: 32secs

    Watch video

      Peak review

    Includes: Switch display to peak level readings. Duration: 46secs

    Watch video

      Manual zeroing

    Includes: Perform a sensor zero when in clean air. Duration: 32secs

    Watch video

      Select user

    Includes: Active user tracking. Duration: 49secs

    Watch video

    Bump Testing:

      Manual bump

    Includes: Bump testing using the gas flow plate. Duration: 54secs

    Watch video

    Additional Information:

    Gas-Pro user manuals and datasheets can be found in our downloads section.

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