First Alert Battery Smoke Alarm | Photoelectric

Advanced Photoelectric Sensor: Optimized to detect particles from fires. Provides the earliest possible warning for the most common and dangerous types of home fires.

100% Wire-Free Installation: Functions entirely on battery power with a simple mounting bracket. Install it anywhere in minutes without an electrician.

Complete 10-Year Protection: Provides a full decade of 24/7 monitoring. A low-maintenance, "set it and forget it" safety solution for total peace of mind.