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Product information

  • Product: Crowcon
  • Category: Portable Gas Detectors
  • Project URL: Gas-Pro

Gas-Pro Detector for Confined Spaces

Crowcon Gas-Pro is a confined space entry monitoring solution for workers and fleet managers, and is now supported by the Crowcon I-Test bump test and calibration station.

Offering detection of up to 5 gases in a compact and rugged solution, Gas-Pro has an easy-to-read top mount display combining ease of use and user focused features.

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

Gas-Pro IR detects potentially explosive gases in conditions where a pellistor-based catalytic sensor may struggle, especially in a low oxygen environment. The infrared measurement gives improved reliability and measures gas in two different wavelengths: one that absorbs gas and the other does not. With little chance of being poisoned, the Gas-Pro IR is inherently safer and saves the need of regular and expensive pellistor replacement when used in likely contaminated environments.

User Friendly

  • Top mount display - makes it easy to read at a glance
  • Simple single button operation - reduces training time
  • Intuitive functionality - can be used whilst wearing gloves


  • Monitor 5 gases from many different options - offers 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 - capable of withstanding harsh environments
  • Bump and calibration reminders - Full compliance


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)
Alarm 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)
Logging 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 7.5h
Sampling Internal pump as option
Environment 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
Compliance FCC and CE. Complies with EMC Directive 2014/30/EU, EN50270 and ICES-003
Approvals IECEx: Ex d ia IIC T4 Gb Tamb -20°C to +55°C
ATEX: II 2 G Ex d ia IIC T4 Gb Tamb -20°C to +55°C
UL: Gas detector use in hazardous locations Class 1, Division 1, Groups A, B, C, and D only as to intrinsic safety
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


Certificate Datasheet Manual
MED certificate Gas-Pro – European English Gas Pro (Issue 13 – Sep 2018) European English
MED certificate 2 Gas-Pro – US English (Letter Size) Power & Communication Cables (Issue 4 Jul 15) European English
ATEX Certificate (Instrument) Portables Pro User Manual (Issue 3 – Jan 2015)
IECEx Certificate (Instrument) Gas-Pro QSG A6 Issue 2 Jan 15 English
ATEX Certificate (Charging and communication cables) Portables Pro 2 User Manual (Issue 2 – Oct 2015)
IECEx Certificate (Charging and communication cables)
INMETRO Certificate (Instrument)
INMETRO Certificate (Charging and communication cables)