BRK Electrics Smoke Alarm 120V Battery Back 9120B

BRK Ionization Smoke Alarm. The 9120 Series smoke alarms have been designed to install faster, perform better and be even smarter than before. These improvements help reduce nuisance alarms and save you time and money. Single button test/silence. 9V Battery Backup. Latching alarm indicator – remembers which unit initiated an alarm. Smart Technology – helps reduce the number of nuisance alarms. Perfect Mount – allows for easy alignment of alarm. 10-Years Limited Warranty.