3120B Hardwire Dual Sensor Smoke Alarm with Battery Backup - First Alert
The First Alert® Hardwired Dual Sensor Smoke Alarm with Battery Backup is designed to provide peace of mind. The photoelectric and ionization sensors alert you to both smoldering and fast-flaming fires, offering comprehensive detection and early warning.
First Alert BRK 3120B Hardwired Photoelectric and Ionization …
Oct 3, 2014 · 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.
Product: 3120B - First Alert
Learn how to determine the approximate total battery life of your smoke, CO, or smoke/CO combination alarm. Find more information about your First Alert or BRK product, including manuals, tutorials, and more.
First Alert BRK Hardwired (with Battery Back-up) Dual Sensor …
The BRK 3120 hardwired smoke alarm includes a battery backup that continues to protect you in the event of a power failure. It’s designed for residential use as well as for institutional locations such as hospitals, hotels, dorms, and multiple-family dwellings.
FIRST ALERT BRK 3120B-6 Hardwired Smoke Detector with …
Sep 6, 2018 · The First Alert BRK 3120B hardwire dual photoelectric and ionization sensor smoke alarm with battery backup is designed to provide peace of mind. It features photoelectric and ionization sensors that detect not just fast-flaming fires, but also smoldering ones.
First Alert BRK Hardwired (with Battery Back-up) Dual Sensor …
This 3-pack of First Alert BRK 3120B hardwired smoke alarms includes a battery backup that continues to protect you in the event of a power failure. It’s designed for residential use as well as for institutional locations such as hospitals, hotels, dorms, and multiple-family dwellings.
First Alert BRK 3120B Hardwired Smoke Detector with Photoelectric …
Jun 10, 2011 · Wire-in, 120V AC 60Hz single and/or multiple station photoelectric and ionization dual sensor smoke alarm. Dual Photoelectric and Ionization sensing technologies for optimal sensing of smoke particles produced in both flaming and smoldering fires. Battery backup will help ensure your alarm is working during power outages.
First Alert 3120B 120VAC Hardwired Dual Sensor Smoke Alarm
This First Alert 120VAC Hardwired Photoelectric and Ionization Smoke Alarm with Battery Backup provides double protection for both flaming and smoldering fires using both ionization and photoelectric smoke sensors.
- Reviews: 29
The BRK Model No. 3120B is a wire-in, 120V AC 60Hz single and/or multiple station photoelectric and ionization dual sensor smoke alarm specifically designed for residential and institutional applications including sleeping rooms of hospitals, hotels, motels, dormitories and other multi-family dwellings as defined in standard NFPA 101.
First Alert 3120B - Consumer Reports
We've tested and reviewed products since 1936. Read CR's review of the First Alert 3120B smoke & carbon monoxide detectors to find out if it's worth it.