The RS PRO carbon monoxide handheld gas detector is a great value instrument for measuring CO levels to 1000ppm.

CO measurement
Range 0 ∼ 1000ppm
Resolution ±1ppm
Accuracy ±5% + 2ppm
Repeatability < 2%
Response time < 30 seconds
Zero drift in long term < 5ppm
Sensitivity drift < 5% (per year)
Typical sensor life is 3 years

Temperature measurement:
Range -20 ∼ 50 ℃ / -4 ∼ 122 ℉
Resolution ±0.1℃/±0.1℉
Accuracy ±1.0℃/±1.8℉

Supplied with:
1.5V AAA battery (x6), user manual

Gas detection: Carbon monoxide detection
Carbon monoxide is a deadly toxic gas that has no smell and cannot be seen or tasted. Its presence is lethal causing death and injury, it can be caused by poorly installed or maintained heating appliances, chimneys, flues and gas-fired cooking appliances. Even low levels of CO can impair judgement and greatly increase the risk of accidents and injury in motorists and machine operators. See the 'key characteristics' table for details of the carbon monoxide level and their effects.

4-digit backlit LCD with maximum 1000 counts
Dual display of the readings for CO and temperature
CO ranges between 0ppm and 1000ppm
Easy to calibrate at 100ppm or 500ppm
Max/Min/Average hold
Data hold
Low battery indication
Auto power OFF with disable function
The adjustable alarm
Dimensions 156 ' 73 ' 35 mm
Weight approximately 250g (without batteries)
Backlit LCD
4xAAA battery
Battery life is 90 hours
Operating temperature ranges between -20⁰C and 50⁰C

Boiler plant room
Automotive industries
Welding
Power plants
Refrigeration plants
Textile industry

ANSI/ESD S20.20:2014
BS EN 61340-5-1:2007