First Alert Hard-Wired w/Battery Back-up Photoelectric Smoke/Fire Detector

The BRK 7010B features a photoelectric smoke sensing chamber, an 85dB horn, a 9V battery back-up and a silence feature. Optipath 360 technology provides 360 degrees of direct access to the smoke sensing chamber. Alarm Latch: Easily identifies initiating alarm even after alarm condition has subsided. The Perfect Mount system features a gasketless base and a mounting bracket that keeps the alarm secure over a wide rotation range to allow for true alignment. This will allow finetuning on the positioning to compensate for out of aligned wall studs and to keep the wording level when wall mounting. Battery installation and removal can occur while the unit is mounted to the ceiling or wall via the side load battery compartment. Other Contractor Preferred features include a dust cover to keep alarm clean during construction, keyhole slots in the mounting bracket eliminate the need to remove the electrical box screws for installation. Two locking features are provided to prevent battery theft and/or theft of the unit. Connection to AC power is made with a Quick-Connect wiring harness. Installation is quick, easy and cost effective.120-volt hardwired smoke alarm wires directly into your home's electrical systemPhotoelectric sensor detects smoke from smoldering fires while minimizing false alarmsUniversal mounting bracket and plug-in power connector for hassle-free installationEquipped with Optipath 360 for more comprehensive detection85-decibel alarm.Alarm indicator identifies which unit triggered alarm.Smoke detector can integrate with up to 18 compatible devices for extended coverageIncludes 9 volt battery.Very effective at detecting smoldering fires, before it goes up into flames.