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First Alert 10-Year Battery AC Hardwired Combination Smoke and Carbon Monoxide Detector

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Hardwired ionization smoke and carbon monoxide alarm in 1 unit
Electrochemical carbon monoxide sensor - the most accurate sensor available as compared to other sensing technologies
10-year battery backup provides consistent protection for added safety during power outages

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The First Alert hardwired combination smoke and carbon monoxide alarm detects both carbon monoxide and smoke in a single device. It is designed for hardwired installation but features a 10-year battery backup that allows the unit to function in the event of a power outage. The CO smoke detector can be connected to other compatible BRK or First Alert CO smoke detectors within a single-family residence. A single button silences or tests the unit.

Hardwired ionization smoke and carbon monoxide alarm in 1 unit
Electrochemical carbon monoxide sensor - the most accurate sensor available as compared to other sensing technologies
10-year battery backup provides consistent protection for added safety during power outages
Intelligent sensing technology reduces nuisance alarms
Latching alarm indicator remembers which unit initiated an alarm
Perfect mount - allows for easy alignment of alarm
Single button test/silence helps to ensure your alarm is working properly
7-year limited warranty