First Alert CO615 Carbon Monoxide Alarm, 10 ft, Digital Display, 85 dB, Alarm: Audible, Electrochemical Sensor, Wall
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The First Alert CO615 dual-power carbon monoxide plug-in alarm alerts you to dangerous carbon monoxide. This carbon monoxide detector operates on a dual-power system with battery backup for continuous monitoring, even in the event of a power outage. The backlit digital screen tells you at a glance what the carbon monoxide and power levels are. The CO monitor also features a convenient test and silence button and an end-of-life timer that lets you know when it is time to replace the unit.