brk 9120b smoke alarm dual ionization 120v hardwired w battery backup

The BRK 9120B smoke alarm is a great choice when it comes to affordability. Redesigned from the ground up, BRK created the 9120B model to directly replace past BRK smoke alarms while greatly improving sensing technology, installation ability, and improved connectivity. The first alert 9120B smoke alarm has an 85dB horn, 9V battery back-up, and a silence feature. The BRK 9120B smoke alarm uses dual ionization technology to reduce false alarms more efficiently and more accurately than ever before. The 9120B smoke alarm is designed for sleeping rooms in your home, hospitals, hotels, motels, college dormitories, and multi-family housing units. This BRK smoke alarm complies with NFPA101, UL217, CSFM, NFPA72, HUD, FHA, and other agencies. Where AC/DC silent smoke alarms are required, BRK smoke alarms work perfectly. The BRK 9120B model has the ability to be interconnected within a circuit of alarms and other alert devices such as bells, whistles, repeaters, fans, or switches. You can conn