First Alert Dual Sensor Smoke Alarm with 10-Year Sealed Battery, 1 pk

First Alert's Precision Detection advanced sensing technology complies with the latest 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 detector Dual sensors provide protection from fast flaming and slow smoldering fires Test/silence button for efficient testing to ensure alarm is working properly End-of-life warning lets you know when it's time to replace the detector