[shortdesc]

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

[/shortdesc]

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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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

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