• First Alert 3120B Smoke Alarm
  • First Alert 3120B Smoke Alarm
  • First Alert 3120B Smoke Alarm
  • First Alert 3120B Smoke Alarm
  • First Alert 3120B Smoke Alarm

First Alert 3120B Smoke Alarm

First Alert BRK 3120B Hardwire Dual Photoelectric and Ionization Sensor Smoke Alarm

  • Hardwired with battery backup for constant monitoring, even during a power failure
  • Photoelectric and ionization sensor to quickly detect both fast burning, and smoldering fires, which alerts you with an 85-decibel alarm
  • Simple to use, with a single test/silence button and side-load battery compartment; included mounting bracket makes installation easy
  • Latching alarm identifies which unit initiated the alarm
  • Tested to meet UL standards
  • End of life signal lets you know when its time to replace the alarm
  • Equipped with Optipath 360 technology that enhances detection with 360-degree access

The front cover design of the alarm may vary but product function remains the same.

  • The First Alert Hardwired Dual Sensor Photoelectric and Ionization Smoke Alarm with Battery Backup is designed to help provide peace of mind.
  • This dual sensor, photoelectric and ionization alarm alerts you to both smoldering and fast-flaming fires in the event of a home fire emergency.
  • Hardwire alarm includes battery backup for protection during power outages.
  • Two latching features help indicate a low battery or the originating alarm in a system.
  • A single test button makes alarm easy to test regularly.
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    • Detail

      Hardwired alarm includes battery backup for power outages.This unit has 2 tabs on the top of the battery drawer. Simply press down on the tab and the battery will eject.refer the user manual.Photoelectric and ionization senso Age Group adult.

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