TPI 770 Ambient Carbon Monoxide Single Gas Monitor, Backlight Display, 2 x 1.5V AA Alkaline Batteries, 0 to 999ppm, 1ppm Resolution, +/-3ppm or 5 Percent Accuracy

The 770 CO single gas monitor is a state-of- the-art Carbon Monoxide instrument designed to measure Carbon Monoxide in ambient air and to perform a carbon monoxide build up test. It has a measurement range of 0 to 999 ppm (parts per million) and displays the readings in 1ppm increments. Measure/monitor ambient CO levels in home and office spaces. Visual and audible alarm indicates unsafe CO levels. This palm-sized unit displays readings in 1ppm increments. The unit features a personal audible and visual alarm, which is factory set at 30ppm CO but can be changed in the field to keep current with government legislation. Other features include maximum reading hold, elapsed time and manual zero. The audible alarm may be switched on and off as required. Battery changing is made easy by use of a simple slide off battery compartment cover. The detector uses an advanced electrochemical sensor that measures Carbon Monoxide and should not be used for any other purpose. Ambient CO safety checks. RoHS Compliant. UL Listed. CE Approved. 2 year life electrochemical sensor. 300 hours operating time. Carbon monoxide (CO) measurement: Range 0 to 999ppm. Accuracy: +/- 3ppm or 5 percent of reading whichever is greater. Resolution: 1ppm. Elapsed time indicator. With backlight. Alarm: Audible. Power supply: 1.5V AA (2). Weight: 6.4 oz (181.5g). Warranty: 3-year limited warranty, 2-year sensor warranty. Measures 2-3/4" width by 6" height by 1-1/2" depth.