Carbon monoxide is a killer. That’s why CO checks need to be carried out when a gas heating or boiler is being serviced or installed. The compact testo 317-3 CO meter is designed to provide you with a quick and reliable means of testing the surrounding air for carbon monoxide.
- Ready to go: no zero phase
- Alarm with adjustable thresholds
- Carry case with belt clip and handstrap
- 3-year CO sensor warranty
