BRK First Alert - SA520B Interconnected Hardwire Wireless Smoke Alarm with Battery Backup

$ 38.49
Availability: Out Of Stock

Alarm Type Smoke
Power Source Hardwired
Interconnects Yes - Wireless
Battery AA Batteries

Smoke Alarms
 BRK First Alert Smoke Detectors,Fire Safety,Home Safety,Smoke Alarm
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The First Alert SA520B Wireless Interconnect Integrated Smoke Alarm links the alarms throughout your home. This 120V AC hardwired wireless detector with battery backup integrates single alarms into a system. By adding Wireless Interconnect battery powered alarms elsewhere, when one alarm sounds, all alarms will be notified. Easily link alarms with the press of a button. The RF Interconnect technology continues to provide a reliable and secure radio frequency communication between Wireless Interconnect alarms. This technology features 915 MHz frequency with 65,000 security codes, and three (3) channel frequency hopping.

The SA520B features a perfect mount system for perfect alignment, a low battery latch and (2) silence features. You can silence the low-battery chirp for eight hours or temporarily silence a nuisance alarm. The Wireless Smoke Alarm is warranted to the original purchaser for a period of 10 years that meets with the UL standards.

Easy access battery drawer: no need to remove an alarm from the ceiling to change the battery.

  • The audible alarm emits low-frequency sounds
  • Interconnects with other alarms without wires
  • 1-button silence and test
  • Alarm remember which device started the series
  • Onelink alarms by First Alert feature a wireless connection so when one alarm is triggered, all alarms sound
  • Photoelectric smoke sensing technology reduces nuisance alarms
  • Easily expand an existing interconnected 120-Volt AC system by replacing one alarm with the SA520B
  • Comes with a 10-year limited warranty


Don't know what type of smoke alarm is right for your home? Check out our guide on how to choose the right smoke detector for your home


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