First Alert 10-Year Sealed-Battery Ionization Smoke Alarm - 3 V - 85 dB

The First Alert 10-Year Sealed-Battery Ionization Smoke Alarm features a tamper-resistant lithium battery that provides a full 10 years of protection without having to change the batteries! A mute feature silences nuisance alarms from cooking smoke or shower steam. This smoke and fire alarm includes power LED and alarm indicator, end of life signal and single test/silence button so you can test your alarm regularly. For maximum protection and the ultimate in assurance, you can depend on First Alert to secure what matters most in life.