The alarm provides continuous protection from smoke and fire, even during power outages.
Kidde Worry-Free Living Area Smoke Alarm with Sealed Lithium Battery Power, Model P3010L | CVS The customer can use a simple tool such as a screwdriver to deactivate the unit, stopping the chirp and making it safe for disposal. At the end of alarm life, the unit will chirp, indicating the alarm is in need of replacement. Ionization sensing alarms may detect invisible fire particles (associated with fast flaming fires) sooner than photoelectric alarms.