Klein Tools Carbon Monoxide Meter

Carbon monoxide (CO) is an odorless, colorless, and toxic gas which is a byproduct of incomplete combustion. For HVAC technicians who work on combustion equipment like furnaces, water heaters, and boilers as part of their job, CO is occupational hazard. CO can also threaten the health and safety of people who live and work near combustion equipment which emits excessive amounts of the gas into the ambient air.