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

First Alert makes a comeback with another sensational product that goes above and beyond to serve your needs. The First Alert BRK 3120B Hardwire Dual Photoelectric and Ionization Sensor Smoke consists of the world Sensor technology that contains both photoelectric and ionization Sensor properties. So, you can count on this baby to go off at the slightest hint of fire or carbon monoxide.

This product is an expert in detecting smoldering fires as this is the kind of fire that can erupt into flames. Whenever such fires start to make their signs present, this alarm emits a loud 85 dB warning to keep you safe. It also comes with interconnector will features, so that you can easily integrate with other alarm systems for optimal protection.

Installation is easy due to its two latching features, and the battery life is long enough to make you not feel unsafe. Optipath 360 Technology combines all these great features to provide you the best alarming system possible at a price that you wouldn’t think twice about buying. Keep your family safe; get this fire alarm right now.


  • Combines the benefits of ionization and photoelectric sensor
  • Can be installed easily, thanks to the latches
  • Decent battery life that you can count on


  • A little too sensitive for some people

Check out more smoke detectors here!

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