Hardwired Wireless Interconnect smoke alarm bridge unit with replaceable battery backup and Silence feature. Includes photoelectric smoke sensing technology and two AA alkaline batteries.
Product Overview
BRK Wireless Interconnect enabled alarm
Bridge Unit - Wireless Photoelectric Hardwired Smoke Alarm
Single button test/silence
Two silence features - can silence the low-battery chirp for up to eight hours or temporarily silence an unwanted nuisance alarm
Add additional OneLink alarms and hardwired alarms. Links all alarms together for a complete system.
Hardwired interconnect and RF Interconnect: reliable and secure radio frequency communication between alarms. 915 MHz frequency with 65,000 security codes and 3 channel frequency hopping.
First Alert SA520B Interconnected Smoke Alarm With Hardwire Adapter
Returns accepted within 30 days from purchase , buyer responsible for return shipping and must be returned in same ORIGINAL , UNOPENED condition for a refund .See full return policy on bottom right hand corner of page for more return policy info.