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



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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.

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

Includes 10-year limited warranty. Meets UL standards.

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  • Hi is this compatible with the Insteon smoke bridge?

    No, only the BRK First Alert OneLink alarms are compatible. 

In The Box

  • 1 x Wireless Hardwired Smoke Alarm (Bridge Unit)
  • 1 x Mounting Bracket
  • 1 x Power Connector
  • 1 x Dust Cover
  • 1 x English/ Spanish Instructions Manual

 Info & Guides

User manual

Spec sheet

Wireless Guide

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