Kidde Hardwire Smoke/CO Alarm

Hardwired 120 Volt Interconnected Combination Carbon Monoxide and Smoke Alarm. Provides 2 Important Safety Devices In A Single Unit, Includes A Voice Warning System That Announces Fire, Carbon Monoxide, Low Battery Or Smart Hush Activation. Eliminates Any Confusion & Clearly Warns You & Your Family Of A Smoke Or Carbon Monoxide Danger, Or If Your Battery Is In Need Of Replacement. Technically Advanced Combination Alarm Includes 9V Battery Backup Providing Protection Even During A Power Outage When Many Incidences Occur.