First Alert SA303CN3 Battery Powered Smoke Alarm with Silence Button

Battery powered smoke alarm with mute feature silences nuisance alarms from cooking smoke or shower steam. Single button also tests alarm functions. Easy access battery drawer: no need to remove alarm from ceiling to change battery. This First Alert alarm has a side battery drawer slides open for easy battery replacement. Blinking power indicator on the unit confirms that it is receiving power. Features a convenient silence/test button Allows you to both silence a non-threatening alarm and to test the unit's functionality Low battery alert to remind you when to change the battery Missing battery guard to ensure that a battery is placed inside the alarm Contains an optional pin to lock the battery and unit in place for tamper resistance Can be mounted on either the ceiling or the wall Can be used in mobile homes and RVs The First Alert smoke and fire alarm is UL listed for safety