First Alert Smoke Alarm SA350B Lithium Battery Ionization Smoke Alarm 10-Year Sealed Tamper-Proof Battery [ 2 PACK ]- 0827-SA340CN SA340CN

This First Alert 0827B 10-Year Sealed Tamper Resistant Ionization Smoke Alarm features a long-life 3V lithium battery that effectively provides a full 10 years of protection, without requiring any battery change.

A single test/silence button lets you quickly mute nuisance alarms from cooking smoke or shower steam.

This smoke and fire alarm also includes an easy mounting bracket and alarm end-of-life indicator.

• Smoke detector with built-in 10-year 3-volt lithium power cell
• Ionization sensor for efficient smoke detection
• Tamperproof design prevents batteries from being removed