First Alert 1039830/SA521CN-3 1039830 Smoke Alarm, Photoelectric Sensorby First Alert
- Hardwired smoke alarm can communicate wirelessly with other compatible alarms to create a fire alarm system
- When one alarm is triggered, all connected alarms will sound
- Integrated battery backup allows continuous detection during power outages
Smoke alarms battery powered photoelectric"onelink" ac/dc Easily expand an existing interconnected 120-volt AC system by replacing one alarm in the series with this alarm. Add additional battery-operated First Alert Onelink enabled alarms to expand without wires. Photoelectric smoke alarm reduces nuisance alarms. Alarm and low battery silence feature.
- Part Number
- 029054002440, 029054018960
- Related Departments
- Electrical, Lighting & ElectronicsAlarm ProtectionFire & Smoke Alarms & Accessories
- Shipping Weight
- 1.59 pounds
- Domestic Shipping
- Item can be shipped anywhere in the US including APO/FPO addresses and territories.
- International Shipping
- Item can be shipped anywhere in Canada including the territories.