A rugged, ultra-compact single-gas personal monitor with loud and bright triple alarms, interchangeable intelligent sensor modules, and up to 2-year battery life — built for oil and gas, chemical, and industrial environments.
The Crowcon Gasman is a proven, compact single-gas personal monitor built for workers who need reliable gas detection without complexity. Weighing as little as 85g in toxic configurations, its polycarbonate housing and IP65 rating make it one of the most durable and lightweight single-gas detectors available for oilfield and industrial use. Gasman delivers an unbeatable alarm combination — 95dB audible, dual red/blue flashing LEDs, and internal vibrating alarm — ensuring workers are alerted even in high-noise environments. Fully interchangeable intelligent sensor modules cover over 20 gas types including H₂S, O2, CO, LEL, and a broad range of toxic gases, with both rechargeable and non-rechargeable configurations available. Data logging captures up to 900 hours at 1-minute intervals, with real-time TWA and peak display modes. Calibration is managed through Crowcon's Portables PC software, and the optional I-Test station automates bump testing and compliance tracking for Gas-Pro and T4 fleets. A dependable, no-frills workhorse for single-gas detection across any operation.
Key Features & Benefits
- Ultra-lightweight — as low as 85g (toxic versions); one of the smallest single-gas detectors available
- Triple alarm system — 95dB audible, dual red/blue LED, internal vibrating alarm
- Fully interchangeable intelligent sensor modules — 20+ gas types, swap without tools
- Rechargeable lithium battery for all gas types; non-rechargeable option up to 2 years for O2 and toxics
- 72-hour runtime on rechargeable MPS flammable configuration
- Full timed data logging — 900 hours at 1-minute intervals (54,000 logs); 4,800+ events
- Real-time TWA and peak display modes
- IP65 rated — water and dust resistant; tough polycarbonate with full overmoulding
- Operating temperature range -20°C to +65°C — wider than most competitors
- CSA Class I, Division 1 certified (Groups A, B, C, D) — Alberta oilfield ready
- ATEX Zone 0/1 and IECEx certified
- One-button operation — minimal training required
- Optional manual aspirator for sampling applications
- Calibration via Crowcon Portables PC software; compatible with I-Test station
- 2 Year Warranty
Technical Specifications
| Size | 90 x 48 x 24mm |
| Weight | 85g (toxic) / 129g (O2) / 138g (flammable) / 139g (CO2) |
| Display | Custom backlit LCD — gas concentration, battery level, display mode, calibration status |
| Display Modes | Normal, display recall, real-time concentration, peak, TWA |
| Data Logging | 54,000 logs at 1-minute intervals; 4,800+ events |
| Response Time (T90) | 10s (O2/O2 Long-Life); 20s (flammable/toxic) |
| Alarms | 95dB audible (multiple selectable tones), dual red/blue LED, internal vibrating |
| Battery | Rechargeable lithium (all gas types); non-rechargeable lithium (toxics and O2) |
| Operating Time | 72 hours rechargeable (MPS flammable); up to 2 years non-rechargeable |
| Operating Temperature | -20°C to +65°C |
| Humidity | 5–95% RH (0–99% RH for O2 LL MPS) |
| Ingress Protection | IP65 |
| PC Interface | RS232 (charger/interface variant); RS232/USB converter available |
| Sampling | Optional manual aspirator |
Safety and Compliance Certifications
- CSA North America: Class I, Division 1, Groups A, B, C, D
- ATEX Europe: Ex ia db IIC T4 Ga (toxic/O2); Ex ia d IIC T4 Gb (flammable); Ex ia IIC T4 Ga (MPS flammable)
- IECEx International: Ex ia IIC T4 Ga (toxic/O2); Ex db ia IIC T4 Gb (flammable)
- Standards: EN60079-0/11/1, CSA22.2, 2014/34/EU, EN50270, EN50271, IEC61508, EN61779, EN45544
Downloads
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