First Alert Smoke Alarm, 10-Year Sealed Battery Detector with Test & Silence Button, SMI110, 1-Pack

Price: $29.99 - $24.99
(as of Jan 08, 2026 04:24:28 UTC – Details)


The First Alert SMI110 10-Year Sealed Battery Smoke Alarm provides reliable protection and meets new industry standards. First Alert’s Precision Detection advanced sensing technology helps reduce cooking nuisance alarms and provide an early warning. The 10-year sealed battery makes installation of the alarm easy and no battery replacements are needed for the life of the alarm.
First Alert’s Precision Detection advanced sensing technology complies with new industry standards to reduce cooking nuisance alarms and provides early warning in the event of a home fire emergency.
10-Year sealed battery eliminates battery replacements and low battery chirps for the life of the alarm
End-of-life warning lets you know when it’s time to replace the alarm
Test/silence button for efficient testing to ensure alarm is working properly