First Alert 9120B Smoke Detector, Hardwired Alarm with Battery Backup, 6-Pack

A loose neutral (white wire) connection within the home junction box could prompt a device malfunction. Equipped with an ionization sensor, this smoke alarm reliably detects smoke from fast flaming fires and alerts you with an 85 decibel alarm. To ensure complete protection, make sure to place one on each level of your home and in each bedroom.

The smoke alarm can connect to other compatible BRK or First Alert smoke detectors, ensuring that all alarms will sound when smoke is detected. The device is simple to use, with a single test/silence button and a side-load battery compartment. Tamper-resistant locking brackets and universal mounting brackets make installation easy.

Rigorously tested to meet UL standards, the smoke alarm emits a T3 pattern. First Alert has been the most trusted brand in home safety since launching the first residential smoke alarm in 1958 (based on a First Alert Brand Trust Survey in February 2018). Keep your family safe with this 6-pack of hardwired smoke alarms; the battery backup means constant monitoring, even if there's a power failure.

Faster turnarounds on job sites with the easy-to-install, most-trusted alarms in home safety. The easy-to-access battery drawer allows you to replace the battery without dismounting the alarm. This smoke alarm is designed to provide reliable and efficient protection for your home and family.

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