First Alert Dual-Power Carbon Monoxide Plug-in Alarm with Digital Display wellness *Energy savings may vary based

*Energy savings may vary based on actual usage and other factors

Audible message alert

battery life is based on lab data with 40 events/day

With its front push-to-talk button

First Alert Dual-Power Carbon Monoxide Plug-in Alarm with Digital Display wellness *Energy savings may vary basedThe First Alert CO615 Dual Power Carbon Monoxide Plug in Alarm alerts you to dangerous carbon monoxide levels. 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 monitor also features a convenient test and silence button and an end of life timer that lets