FIRST ALERT Hardwired Wireless Smoke Alarm with Photoelectric Sensor and Battery Backup, SA521CN-3ST
Brand: FIRST ALERT
Help keep your family safe with this hardwired smoke alarm that wirelessly interconnects with other First Alert–enabled alarms to create a home safety network
Equipped with photoelectric smoke sensor optimized to detect larger smoke particles produced by smoldering fires; helps minimize the number of false alarms
Wirelessly connect up to 18 First Alert enabled alarms for the maximum in whole-home protection
Hardwired alarm includes 2 AA backup batteries for continued monitoring in the event of a power outage
Includes test/silence button, low-battery warning, EZ access battery door