First Alert SMCO210 Sealed 10-Year Battery Combo Smoke and CO Alarm with Slim Profile Design

Reliable 2-in-1 Protection

Easily install the SMCO210 10-Year Battery Combo Smoke and CO Alarm for reliable 2-in-1 protection against both threats in a single alarm. With no wiring required, simply mount the detector on a wall or ceiling throughout your home to help be alerted to a carbon monoxide or fire emergency.

10-Years of Uninterrupted Protection

The Combination Smoke and CO Alarm's built-in 10-year sealed battery provides continuous power for the life of the alarm meaning there is no need to worry about battery replacements. This eliminates low battery chirps for the life of the detector, plus the cost and hassle of changing the batteries.

Slim Profile Design

The slim profile combination alarm is half the depth of a standard alarm and is equipped with superior features. The low-profile design is sleek and compact to help the detector blend seamlessly with most home decor.

Efficient Testing Feature

Test the 10-year battery combo smoke and CO alarm using the single test/silence button on the front of the alarm to help ensure it is functioning correctly and silence false alarms. The end-of-life warning will help alert you when it’s time to replace the detector because alarms don't last forever. See user's manual for information on how and when to test and replace alarms.