Carbon Monoxide Detector

Carbon Monoxide DetectorThe SCM4 Carbon Monoxide (CO) Detector has a very fast reaction time, and measures CO in parts per million (ppm). Its electrochemical sensor is fast enough for walk-around tests. Features and benefits include: Field-replaceable CO sensor; Advanced three-pin sensor measures 0 to 1000 ppm CO; Calibrate / Zero SCM4 to ambient quickly with the ZERO button; Audio and visual alarms w/mute; Bright-blue, backlit dual-display with MAX and real-time measurements displayed; Magnetic hanger for hands-free operation; Auto Power-Off (APO).IncludesCarbon Monoxide Detector - SCM49V Battery (installed)Operator's ManualFeaturesField-replaceable CO sensor Easy to install Lasts approximately two years Comes pre-calibrated Fast electrochemical sensor helps you find CO sources like cracked heat exchangers or breached flue stacks Calibrate to ambient quickly with ZERO button Audio and visual alarms (with MUTE function) Alarm rate increases as carbon monoxide concentration increases MAX hold to help you zero in on the source Bright-blue backlit dual-display to test in dark crawl spaces Magnetic hanger for hands free testing Auto Power Off (APO) to save battery life (easy to disable) Battery check with % of battery life left displayed.