Experience hassle-free operation and peace of mind with the First Alert Ionization Smoke Detector. The included long-life lithium battery supplies power to the smoke alarm for maintence-free operation and easy istallation. A tamper-proof side drawer has an optional lock that prevents the battery from being removed without the proper tool. Ionization smoke-sensing technology is ideal for quick detection of flash fires, usually caused by accelerants or cooking. If danger is detected, a loud 85-decibel siren will trigger, alerting the household.

Ionization smoke-sensing technology is ideal for flash flame detection Long-life lithium battery included 85-decibel siren alerts you to dangerous conditions Convenient test button checks alarm’s functionality Low battery signal chirps when the battery needs replacing Battery powered for easy smoke alarm placement and installation Tamper-proof side drawer locks so battery can’t be removed without proper tool