First Alert Brk Hardwired Photoelectric Sensor Smoke Detector in White | SA520B
$39.98
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The BRK SA520 Wireless Interconnect photoelectric smoke alarms link the alarms throughout your home. 120 V AC hardwired wireless detectors with battery backup integrate single alarms into a system. Expand protection by replacing one existing hardwired alarm with Onelink and linking to existing hardwired and battery operated alarms. By adding BRK Wireless Interconnect AA battery-operated alarms elsewhere, when one alarm sounds, all alarms will be notified. Photoelectric smoke sensor reduces nuisance alarms. Easy access battery drawer: no need to remove an alarm from the ceiling to change battery. Includes 10-year limited warranty. Meets UL standards. First Alert Brk Hardwired Photoelectric Sensor Smoke Detector in White | SA520B

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