The Most Trusted Brand in Fire Safety.
The First Alert CO615 Dual-Power Carbon Monoxide Plug-In Alarm alerts you to dangerous carbon monoxide levels. This plug-in 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 detector also features a convenient test and silence button and an end-of-life warning that lets you know when it is time to replace the detector.
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