Battery Photoelectric Smoke Alarm First Alert

Be alerted to fire in its very earliest stages with this First Alert photoelectric smoke alarm. The optimized sensor detects smoldering fires while distinguishing between real and false threats, reducing nuisance alarms. The 10-year built-in battery ensures continuous power to this First Alert photoelectric smoke alarm, even during power outages. Photoelectric sensor Helps reduce nuisance alarms and detects slow smoldering fires. 10-year sealed battery Never needs to be changed for the life of the alarm. Tamperproof, sealed alarm construction Provides constant protection since the battery cannot be removed. Patented smoke entry system Ensures a direct path to the smoke sensor. Slim design Adds an element of style and is half the size of the standard alarm. Mute button Mutes unnecessary alarms immediately. You can also test your alarm function. End-of-life warning Notifies you when the alarm needs to be replaced.