Please email / call for availability

Product Features

5-year sensor warranty
Ultra lightweight
Water and dust resistant to IP65
CO2 version available
One button operation
MPS™ and LLO2 sensor options
Interchangeable intelligent sensor modules

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.

Crowcon Gasman Compact Gas Detector

Skip to the end of the images gallery

Skip to the beginning of the images gallery

SKU

CrowconGasman

Details

The Crowcon Gasman Compact Gas Detectoris a full-function personal single-gas monitor that is compact lightweight and fully ruggedised for the toughest of industrial environments. Featuring simple single-button operation, it has a large easy-to-read display of gas concentration, and audible, visual and vibrating alarms.

Available with a choice of sensor technology to suit your needs, the Gasman is an ultra-lightweight single gas detector, designed for use in the toughest environments. Its compact and lightweight design makes it the ideal choice for industrial gas detection, in oil and gas, chemical plants (with exotic gases), steel works (special CO sensor), hospitality (CO2), renewable energy (hydrogen) and waste and water works. Also available with our long-life O2 sensor (LLO2), for the accurate detection of oxygen depletion and enrichment, which comes with a 5-year warranty.

Weighing just 130g, it is extremely durable, with high impact resistance and dust/water ingress protection, loud 95 dB alarms, a vivid red/ blue visual warning, single-button control and an easy-to-read, backlit LCD for clear insights and warnings. Data and event logging are standard, and there is a built-in 30-day warning when calibration is due. Gasman is also available in a safe area CO2 version offering 0-5% carbon dioxide measurement.

Designed for use in the toughest environments. The Gasman is perfect for customers who need more sensor options, TWA and data capability.

Key Features and Advantages:

▪ Robust
- ▪ Tough polycarbonate housing – protects you in the harshest environments
- - ▪ Water and dust resistant to IP65
  - - ▪ Full over moulding – high impact resistance

Product Specifications

Size	90 x 48 x 24 mm (3.5 x 1.9 x 0.95 ins)
Weight	Flammable: 138g (4.9oz) Toxic: 118g (4.1oz) Oxygen: 129g (4.6oz) Carbon monoxide: 139g (4.9oz)
Typical response times (T₉₀)	Flammable: 20s Toxic gas: 20s Oxygen: 10s
Alarms	Audible: 95dB; Multiple alarm options let you select distinctive tones for different alarm levels Visible: Dual colours red/ blue flashing LEDs in a gas hazard Internal vibrating alarm
Display	Custom LCD with backlight, with display of gas concentration. Graphic symbols for battery (with proportional indication of remaining operation time), and display mode. Start up indication when calibration is due within 30 days, calibration overdue or service required. Normal display: Real time gas concentration levels Display recall: Peak readings and TWA
Data logging	Full timed datalogging with adjustable sample rate, set to 1 min. data rate as default. 900 hours storage at 1 min. interval (54,000 logs), >4800 events
Battery	Rechargeable lithium battery for all gas types Non-rechargeable lithium battery for toxics and oxygen (excluding CO₂)
Operating time*	Rechargeable: 12 hours minimum for flammable unit Non-rechargeable: Up to 2 years
Sampling	Optional manual aspirator
Operating temperature**	-20°C to +65°C (-4°F to +149°F)
Humidity	20 to 90% RH
Ingress protection	IP65
Approvals	Europe: Toxic or O2: ATEX II 1G Ex ia IIC T4 Ga (-20°C ≤ Ta ≤ +65°C) BASEEFA04ATEX0384 Flammable: ATEX II 2G Ex ia db IIC T4 Gb (-20°C ≤ Ta ≤ +65°C) BASEEFA04ATEX0383 International: Toxic or O2: IECEx Ex ia IIC T4 Ga (-20°C ≤ Ta ≤ +65°C) BAS05.0039 Flammable: IECEx Ex db ia IIC T4 Gb (-20°C ≤ Ta ≤ +65°C) BAS05.0038 North America: CSA Class 1 Groups A,B,C,D Division 1
Standards	Europe: EN60079-0, EN60079-11, EN60079-1, ATEX 2014/34/EU North America: CSA22.2, 152EN50270, EN50271, EN61779, EN45544
PC Interface	RS232 connection from interface module in charger RS232/USB converter available
Calibration	Gasman can be routinely calibrated using Portables PC software or by using Checkbox IMH
Crowcon Connect Compatible?	Yes

*Operating time will depend on operating pattern and alarm occurrence. Frequent or long lasting alarms and use of the optional confidence beep will reduce battery life.

**Toxic and oxygen sensors are not rated for continuous operation at high temperatures. Consult Crowcon if operating temperatures are likely to exceed 40°C (104°F) for extended periods.

Gases and Ranges

Required ranges and alarms vary by country and application and these can be configured as required. Each gas channel can have two instantaneous alarm levels set. Toxic units also have Time Weighted Average (TWA) alarms.

Flammable gas calibration is available for methane, propane, butane, pentane, hydrogen and
ethylene as standard.

Gasman is also available in a safe area CO₂ version offering 0-5% carbon dioxide measurement.

Gas	Range	Standard Alarm (UK)
Ammonia (NH₃)	0-100 ppm	25 ppm
Carbon monoxide (CO)	0-500 ppm	30 ppm
Carbon dioxide (CO₂)	0-5% vol.	0.5% vol.
Chlorine (Cl₂)	0-20 ppm	0.5 ppm
Flammable	0 – 100% LEL	20% LEL
Fluorine (F₂)	0-1 ppm	0.1 ppm
Hydrogen (H₂)	0-2000 ppm	N/A
Hydrogen cyanide (HCN)	0-25 ppm	5 ppm
Hydrogen fluoride (HF)	0-10 ppm	1 ppm
Hydrogen sulphide (H₂S)	0-100 ppm	5 ppm
Nitric oxide (NO)	0-100 ppm	25 ppm
Nitrogen dioxide (NO₂)	0-20 ppm	1 ppm
Oxygen (O₂)	0-25% vol.	19.5% / 23.5% vol.
Ozone (O₃)	0-1 ppm	0.1 ppm
Phosphine (PH₃₎	0-5 ppm	0.2 ppm
Phosgene (COCL₂₎	0-1 ppm	0.1 ppm
Sulphur dioxide (SO₂)	0-20 ppm	1 ppm