CO Check + Carbon Monoxide Breath Monitor

Product Code: N101246

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£209.25 exc VAT
£251.10 inc VAT

  • Designed as a low-cost screening device for smoking cessation.
  • Results instantly displayed on large display
  • Single press button to toggle between ppm and %COHb
  • Breath hold countdown timer to guide patients
  • Measurement of environmental CO levels

Not available for members of the public to purchase for private use - please contact us for more information


Includes FREE Delivery
£209.25 exc VAT
£251.10 inc VAT

The CO Check + carbon monoxide breath monitor has been specifically designed as a low-cost screening device for smoking cessation.

A single breath will instantly display results on the large screen in CO part per million (PPM) or % Carboxyhaemoglobin (%COHb) – the amount of carbon monoxide attached to your red blood cells represented as a percentage. Users are guided to hold their breath with a count down timer and then encouraged to exhale with an on-screen blow icon to assist testing compliance.

The CO Check + breath monitor is also capable of detecting environmental CO levels. When the Environmental Capture is enabled, background CO levels are taken into account when carrying out a breath test. This ensures that any possible environmental exposure can be clearly identified. Environmental levels are displayed in PPM.

What's included?

  • CO Check + Carbon Monoxide Breath Monitor
  • Carry case
  • 4 SafeBreath mouthpieces
  • 9v PP3 battery
  • Calibration stem connector
  • Operating manual


Is the monitor CE Marked?  


Is it IEC 60601 Electrical Safety Standard Compliant?  


Is the useful life of the device 2 year or 5 years?  

The device has a 5 year warranty except for the electrochemical fuel cell which has an expected life of two years and is therefore excluded from the warranty.  The electrochemical fuel cell works in a similar way to a battery and therefore the more you use it the shorter it’s life. The chemical is used up as it combines with the CO in the exhaled breath, which produces a current that is proportional to the CO concentration.  In normal use the cell will last at least 2 years but if it is used regularly with high levels of CO, or exposed to abnormally high levels of CO, it may need to be replaced sooner.

Technical Specification

Gas Detected – Carbon Monoxide

Concentration Range – 0-99 PPM

Detection Sensor Used – Electrochemical fuel cell

Sensitivity – 0.1 PPM (0-10 PPM range); 1 PPM (10-99PPM range)

Accuracy (repeatability) – 2ppm or +/- 5% whichever is greater

Operating Temperature – 5-35o Celsius

Operation pressure – Atmospheric 10%

Operating Humidity – 30% to 90% RH

Operating Altitude – Sea level to 6000 ft

Storage Temperature – minus 20 to + 70O C

Storage Humidity – 10% to 90% RH

Hydrogen cross-sensitivity – <12% at 20˚ C

Sensor Life – 2 – 5 years, 2 years warranty

Sensor Drift – <2% per month

Display – Custom LCD

Power Supply – Single 9V PP3 battery

Weight Approximately – 150g including battery

Dimensions – 135mm x 65mm x 30mm

Results displayed – CO PPM (Carbon monoxide parts per million)
%COHb (% carboxyhaemoglobin)
%FCOHb  (% foetal carboxyhaemoglobin)

CO Check + – Catalogue Number CO10