FIRST ALERT Hardwired Wireless Smoke Alarm with Photoelectric Sensor and Battery Backup, SA521CN-3ST , White
- 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.