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Crowcon Gasman Single Gas Monitor, 0-100ppm Ammonia, Non Rechargable Battery (single use), English Safe Area only - GS-AR-B-066-G

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Crowcon Gasman Single Gas Monitor, 0-100ppm Ammonia, Non Rechargable Battery (single use), English Safe Area only - GS-AR-B-066-G
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Crowcon Gasman Single Gas Monitor, 0-100ppm Ammonia, Non Rechargable Battery (single use), English Safe Area only - GS-AR-B-066-G

Crowcon Gasman Single Gas Monitor, 0-100ppm Ammonia, Non Rechargable Battery (single use), English Safe Area only - GS-AR-B-066-G


GS-AR-B-066-G Gasman Single Gas Monitor, 0-100ppm Ammonia, Non Rechargable Battery (single use), English Safe Area only by Crowcon

For over 40 years, Crowcon Detection Instruments has produced state of the art gas detection devices for personal and industrial use. Building upon their reputation for reliable and innovative gas monitoring products, Crowcon introduces the Gasman personal gas monitor. Its lightweight and compact design is convenient for jobsites where workers need not be weighed down by excessive bulk and equipment. The unit conveniently clips to a pocket or helmet and operates continuously.

The Gasman personal gas monitor has numerous convenient features such as:

  • One button technology
  • Backlit LCD display
  • Durable polycarbonate casing
  • Quick response triple alert system
  • Compact and lightweight design

Easy to Use

The Gasmanís true one button technology is an ideal and simple design. The large glove friendly button is mounted on the front of the unit for easy access and controls all of the unitís programmable features. Also on the front, the Gasmanís easy to read backlit LCD screen indicates gas readings and the battery status. The simple screen provides a clear indication of the unitís operation status. It will also alert the user 30 days in advance of when a calibration test is due. With a simple and intuitive design, Crowcon has produced a gas detector that reduces the complexities of workplace safety, and ensures workers in a straightforward manner that their equipment is on and operational.

Triple Alarm System

This portable single gas detection system features a triple alarm system that is sure to alert the user and anyone in the vicinity. The visible alarm utilizes a dual red and blue flashing LED light, and the unit houses an internal vibrating alert system. These two indicators allow for visual recognition in loud environments and working conditions. The alarm system also features a programmable audible alarm at 95 decibels. The unit is capable of a variety of alarm tones, and users can select which tone may be best for the individual workplace setting. The triple alarm system with multiple sensory indicators is sure to be noticed in almost any work environment.


The Gasman single gas monitor is lightweight and compact, weighing less than 135 grams and with dimensions of 90 x 48 x 24 mm. The unit is available with a wide variety of gas sensors which feature various detection and alarm levels. The unit also features a quick response time of 20 seconds for flammable and toxic gases or 10 seconds for oxygen. Its datalogging feature has approximately 900 hours of storage and all events are time stamped. The battery life for this unit is incredible with 12 hours of runtime on a Rechargeable battery battery or up to 2 years on a non-Rechargeable battery.

Typical ranges and alarms
Gas Range Standard Alarm (US)
Carbon monoxide
(H2 filtered) NEW!
0-500ppm 30ppm
Ammonia 0-100ppm 25ppm
Carbon monoxide 0-500ppm 35ppm
Carbon dioxide 0-5% 0.5%
Chlorine 0-20ppm 0.5ppm
Flammable 0-100% LEL 10% LEL
Fluorine 0-1ppm 0.1ppm
Hydrogen 0-2000pm N/A
Hydrogen cyanide 0-25ppm 5ppm
Hydrogen fluoride 0-10ppm 1ppm
Hydrogen sulfide 0-100ppm 10ppm
Nitric oxide 0-100ppm 25ppm
Nitrogen dioxide 0-20ppm 3ppm
Oxygen 0-25% 19.5/23.5%
Ozone 0-1ppm 0.1ppm
Phosphine 0-5ppm 0.2ppm
Phosgene 0-1ppm 0.1ppm
Sulfur dioxide 0-20ppm 3ppm
Typical response times Flammable 20s, Toxic Gas 20s, Oxygen 10s
Audible Alarms 95dB
Multiple alarm sounds allow selection of distinctive tones for different alarm levels.
Visible Alarms Dual colour red/blue flashing LEDs in gas hazard
Vibrating Alarm 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.
Display Mode Normal display for real time gas concentration levels. Display recall for Peak readings and TWA.

Full timed datalogging with adjustable sample rate, set to 1 minute data rate as default.
900 hours storage at 1 min interval (54,000 logs), >4800 events

Battery Rechargeable Li-ion 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
Note: 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.

Sampling Optional manual aspirator
Operating temp, range -20OC to +65OC (-4OF to +149OF)
Toxic and oxygen sensors are not rated for continuous operation at high temperatures. Consult Crowcon if operating temperatures are likely to exceed 40OC (104OF) for extended periods.
Humidity 20-90% RH
Approval Codes

Toxic/ O 2 : ATEX II 1G Ex ia IIC T4 Ga (-20OC ≤ Ta ≤ +65OC) BASEEFA04ATEX0384
Flammable : ATEX II 2G Ex ia d IIC T4 Gb (-20OC ≤ Ta ≤ +65OC) BASEEFA04ATEX0383

International Toxic / O2 : IECEx BAS05.0039
Flammable : IECEx BAS05.0038
N. America CSA Class 1 Groups A, B, C, D Division 1
Standards Safety
Europe EN60079-0, EN60079-11, EN60079-1, 94/9/EC
N. America CSA22.2, 152
Operation Standards EN50270, EN50271, IEC61508, 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
Accessories Gasman is supplied with an integral alligator clip.
Optional Accessories Hard hat harness, universal harness plate, shoulder strap, chest harness, leather case, aspirator assembly (flow plate, bulb and 2m/6ft tubing) and Gas Test Kit.
Weight Flammable: 138g (4.87oz)
Oxygen: 129g (4.55oz)
Toxic: 118g (4.16oz)
Carbon monoxide: 139g (4.90oz)
Dimensions 90 x 48 x 24mm (3.5 x 1.9 x 0.95 inches) H x W x D

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