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First Alert Brk 3-Pack Hardwired Photoelectric Sensor Smoke Detector

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Features photoelectric smoke-sensing technology that detects smoke while minimizing false alarms
Latching alarm indicator - remembers which unit initiated an alarm
Two silence features - can silence the low-battery chirp for up to eight hours or temporarily silence an unwanted nuisance alarm

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The BRK 7010 hardwired photoelectric smoke alarm is a 120V single- or multiple-station smoke alarm designed for residential home use as well as institutional locations such as hospitals, dormitories, and multiple-family dwellings. This alarm is interconnect able and can be installed and linked with up to 18 compatible devices (up to 12 smoke alarms and 6 compatible devices such as bells, horns, and repeaters) so that when one triggers, all alarms sound. It features a photoelectric smoke sensor designed to reduce false alarms from cooking smoke or shower steam while remaining sensitive to real danger, and Optipath 360 technology provides 360 degrees of access to the alarm. The alarm uses a loud 85-decibel siren, includes an integrated 9V battery backup in case of power outages, and features a single button to silence false alarms and test the unit.

Features photoelectric smoke-sensing technology that detects smoke while minimizing false alarms
Latching alarm indicator - remembers which unit initiated an alarm
Two silence features - can silence the low-battery chirp for up to eight hours or temporarily silence an unwanted nuisance alarm
Easy installation and maintenance
10-Year limited warranty
Tested to meet UL standards