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Product Features
  • Monitor 5 gases from many different options
  • User Friendly
  • Compact and Portable
  • Automatic fail-safe flow plate recognition
  • 14+ hour battery life
  • Water and dust-resistant
  • Top mount display
Delivery options

At Cadmus Products, we prioritise efficient order delivery and offer competitive shipping rates worldwide. Our streamlined process ensures clarity and reliability for all your shipping requirements.

  • We handle consignments of various sizes across the UK and globally, primarily using DHL, but may select other couriers for specific needs.

  • For online laboratory product purchases, shipping costs are displayed at checkout. For quoted items, shipping prices will be included in your email quote.

  • Please visit our shipping and delivery page for more information here.

The Crowcon Gas-Pro Portable Gas Detector offers detection of up to 5 gases in a compact, reliable and intuitive solution. With simple, single-button operation, it is easy to use even when wearing gloves. Its simplicity means there is minimal training time required.


    With a backlit top-mount display and small size, the Gas-Pro portable is a great choice for poorly lit and confined conditions. It’s also water and dust-resistant and provides bump and calibration reminders, ensuring it remains reliable in even the harshest environments.


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


        User Friendly

        • ▪ Top mount display for easy data reading at a glance
          • ▪ Simple single-button operation making it easy-to-use even whilst wearing gloves
            • ▪ Intuitive functionality means minimal training required

            Adaptable

            • ▪ Monitor up to 5 different gases, including oxygen depletion, in a single compact detector
              • ▪ Pumped and diffusion solution options
                • ▪ Automatic fail-safe flow plate recognition means no more pre-entry testing needed
              • ▪ Multi-language selection
                • ▪ Specific and unique Pre-Entry Check (PEC) mode

                  • 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

                      • ▪ Reliable lithium-ion battery for over 14 hr use from a 7.5 hr charge
                        • ▪ Water and dust resistant to IP65 and IP67, ideal for harsh environments
                          • ▪ Bump and calibration reminders to ensure you’re always fully compliant
Size 43 x 130 x 84mm (1.7 x 5.1 x 3.3ins)
Weight 309g 4 gas (10.8oz)/ 340g pumped (11.9oz)333g 5 gas (11.7oz)/ 362g pumped (12.7oz)
Alarms Audible >95dB @ 30cm (98dB @30cm in loud mode)
Visual – all angle dual red/blue LEDs
Vibrating alert
Display Top mount for ease of view with dual colour backlight (green/red)
Data logging 125hr at 10-second intervals (45,000 logs)
Event logging Alarm, over range, calibration, bump, on/off, TWA, 1000 events
Battery Rechargeable Li-ion, >14hr (13 hours pumped operation) based on CH4, O2, H2S, CO
Typical charge time 7.5hr
Sampling Internal pump as option
Operating temperature -20°C to +55°C (-4°F to +131°F)
Storage -25°C to +65°C (-13°F to +149°F)
Humidity 10 to 95% RH+
Ingress protection Independently tested to IP65 and IP67
Approvals IECEx: 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
Compliance FCC and CE. Complies with EMC Directive 2014/30/EU, EN50270 and EMC FFC CFR 47 Part 15, ICES-003
Interface Data connection for gas test solutions and direct to PC
Charging Direct connection to multi-regional power supply
Vehicle charger adaptor
Desktop cradle
USB power and communications lead
Crowcon Connect Compatible? Yes

Gases and Ranges


Gas Range Typical Alarms Resolution
Ammonia (NH3)  0-100ppm  25ppm  1ppm
Carbon dioxide (CO2)  0-5% vol.  0-5% vol.  0.01% vol.
Carbon monoxide (CO)  0-2000ppm  30ppm  1ppm
Carbon monoxide (CO)  0-500ppm  30ppm  1ppm
Carbon monoxide
(hydrogen filtered)
 0-2000ppm  30ppm  1ppm
Chlorine (Cl2)  0 – 5ppm  0.5ppm  0.1ppm
Dual toxic (CO-H2S) H2S 0-100ppm
CO 0-500ppm
 5ppm
30ppm
 1ppm
1ppm
Flammable  0-100% LEL  20% LEL  1% LEL
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
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