BRK 120-Volt Hardwire Smoke Alarm with Battery Backup Dual Photoelectric and Ionization

The BRK Smoke Alarm detects flaming and smoldering fires and runs on a battery backup when your power is out. Your Alarm will sound if it detects smoke even during power outages. This alarm is made for hardwire installation and uses 2 AA backup batteries. It has an ionization sensor to detect fast flaming fires and a photoelectric sensor to detect smoldering fires. Engineered for residential and institutional use, this detector is perfect for hospitals, hotel rooms and dormitories. Use this detector in multi-family dwellings as defined in standard NFPA101. The 3120B is rated for 120-Volt, 60 Hz and has a standard white finish. It measures 5.25 in. x 5.25 in. x 2.50 in. and weighs 0.5 lbs. BRK's Smoke Alarm is warranted to the original purchaser for a period of 10-years. BRK invests time and research into providing dependable and hardworking products. Committed to innovation and value, First alert improves safety in and around the house.|Detects flaming and smoldering fires|Features an ionization and photoelectric sensor|Made for residential and institutional use as defined by standard NFPA101|Rated for 120-Volt, 60 Hz and has a standard white finish|Runs during power outages with 2 AA backup batteries|Measures 5.25 in. x 5.25 in. x 2.50 in.|Includes batteries