First Alert BRK 9120B Hardwired Smoke Alarm with Battery Backup (3)

First Alert Hardwired Smoke Alarm Reviews Summary

Ratings Breakdown

Rated 4.6 by 54 people

Pros from Reviews

  • Easy installation
  • High quality
  • Direct replacement
  • Battery backup
  • Quick replacement process
  • Compatible with old base

Cons from Reviews

  • Short battery life

Notable Features

Battery Backup
85dB Alarm
Ionization Sensor
Hardwired
Reliable Detection
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