10-Year Smoke Alarm with 10-Year Battery

Now you can go a decade without having to worry about replacing the battery in your smoke alarm. This unit comes equipped with a sealed-in lithium power supply that lasts the entire 10-year life of the alarm & eliminates concerns about battery removal & unauthorized alarm deactivation. It's quick & easy to install; alarm automatically activates when attached to the mounting bracket with no pull-tabs or switches. Includes feature that allows you to temporarily silence nuisance alarms. Also features ionization sensor, test button, low-battery signal & flashing LED power light. Power Source(s): Lithium-Ion Battery; Compliance, Standards: UL Listed; Mounting: Wall.