Hardwired Smoke Alarm With Wireless Interconnect, Photoelectric Sensor, Battery Backup, SA521CN3ST, White, Built To Link Up With Other Alarms For A Solid Home Safety Network And Quick Fire Detection
✔️ Wireless interconnects up to 18 alarms for full home safety
The SA521CN3ST is a hardwired smoke alarm that wirelessly interconnects with other enabled alarms to form a whole-home safety network. It uses a photoelectric sensor to detect smoldering fires and minimize false alarms, while providing battery backup for power outages. Ideal for replacing existing hardwired alarms and expanding safety coverage without wiring.
✅ 120 VAC hardwired with battery backup for power outages
✅ Photoelectric sensor reduces nuisance alarms from cooking smoke or steam
✅ Wireless Interconnect links up to 18 alarms for whole-home protection
✅ EZ access battery door with 2 AA backup batteries
✅ Test/silence button and low-battery warning for easy operation
✅ UL standards compliant and recyclable as an electronic device
💡 What is a wireless interconnect smoke alarm and how does it work in a home safety system? This setup creates a synchronized warning network across multiple rooms. - Fully interconnected system: alarms communicate to sound together when smoke is detected
- Easy installation without extra wiring; uses existing 120V circuit plus battery backup
- Photoelectric sensor targets smoldering fires and reduces nuisance alarms
- Supports up to 18 wireless-enabled alarms for broad coverage and quick alerts