Self-test mode verifies CO sensor function anytime, anywhere without the need for test gas
Testo 317-3 Ambient CO meterThe testo 317-3 CO monitor provides fast and easy ambient carbon monoxide testing. This low cost ambient CO air quality tester measures and displays CO from 0-1999 PPM and gives warning of excessive levels with adjustable audible and visual alarms.Other handy features include: HOLD and MAX settings, and an exclusive self-check mode that verifies CO sensor response in seconds. This pocket-sized CO meter weighs only 9 ounces and can be ordered in kits that include the meter, a softcase (with belt loop), earphone, wrist strap, two AAA batteries and an instruction manual. Have confidence in your readings thanks to a three-year sensor warranty, standard. Testo 317-3 Ambient CO meter x Three year CO sensor warranty Visual and audible alarm Adjustable alarm threshold Programmable high and low alarm options Earphone jack, and earbud for loud environments Hands free operation with belt clip soft caseFor contractors and building inspectorsThe testo 317-3 CO monitor detects the presence of carbon monoxide (CO) in ambient air and warns the user both visually and audibly about dangerous CO concentrations during furnace and boiler service and maintenance, weatherization audits or home inspections.Take it with you to detect the presence of carbon monoxide in ambient air during furnace and boiler service and maintenance, weatherization audits or during home inspections. Self-test mode verifies CO sensor at all times without the need for test gas.