Carbon Monoxide is a colourless and odourless gas, making its presence difficult to detect.

CO Screen has been designed to enable emergency service responders to carry out a simple breath test to establish carbon monoxide levels in a subject’s blood.
When dealing with CO, time is critical. In the blood stream Carbon Monoxide has an affinity with haemoglobin some 200 times greater than Oxygen. When this happens, the blood is no longer able to carry oxygen, and this lack of oxygen causes the body’s cells and tissue to die.
CO Screen will give instant breath results in %COHb and PPM. Both measurements are backed up with colour traffic lights for immediate visual display.

The new CO Screen, a rapid assessment of Carbon Monoxide poisoning for Emergency Services and First Emergency Responders.

CO Screen


  • Results instantly displayed
  • Results displayed in %COHb or ppm for easy interpretation
  • No warm up time required
  • Can be used on multiple patients with minimal effort (mouthpiece must be disposed of between patients)
  • Configurable breath hold time dependent on operator preferences ranging from  0 to 20 seconds
  • Configurable light indicator dependent on operator preference
  • Hard shelled carrycase with mouthpieces for easy storage and transportation.
  • Simple push button calibration


“We have been using a large number of CO Check Baby and CO Check Pro monitors in helping people to quit smoking and have found them easy to use with excellent support along the way – Health Improvement Nurse, Vulnerable Groups – Scotland.”

“We have been using the CO Check Baby Monitors for some years now and following minor teething problems, with good support have found them to be accurate and effective. Midwifery Teams Midwifery Manager – Hampshire – UK.”

“I have been using the CO Check Baby for breath testing pregnant women that smoke and have found it to be an invaluable tool, MD Diagnostics have shown amazing support to us as a large team of Midwives” – Smoking and Pregnancy Specialist Midwife – Dorset – UK.”

Product Features CO Check + CO Check + Baby CO Check PRO CO Check PRO Baby CO Screen
Catalogue number CO10 CO15 CO20 CO30 CO50
Breath hold countdown
(user configurable)
Instantly displays results
Displays CO in parts per million
Displays %COHb
Foetal Carboxyhaemoglobin
Traffic light indicators of CO levels
(user configurable)
Suitable for use with SafeBreath mouthpieces
Suitable for use with EcoStraws
Suitable for general smoking cessation
Suitable for smoking cessation in pregnancy
Suitable for screening for CO poisoning useful in occupational settings and,A & E departments.
Supplied with hard shell carry case
Supplied with soft fabric pouch carry bag
Measures Environmental CO levels and is a tick for ALL products

Sign Up For Newsletter

Receive news and updates.

We respect your privacy.