BRK® Smoke Detector Alarm, Hardwired w/Battery Backup, Series: 9120, 120 VAC Power Source, 10 ft Detection, Ionization Sensor, Alarm: Audible Alarm, Up to 18 Units Interconnection, 85 dB Alert, LED Visual Alert, 10 to 90 % Humidity, 2 Sensors, Quick-Connect Wiring, 40 to 100 deg F Operating, White, 5.58 in Dia x 1.97 in H
BRK® Smoke Detector Alarm, Hardwired w/Battery Backup, Series: 9120, 120 VAC Power Source, 10 ft Detection, Ionization Sensor, Alarm: Audible Alarm, Up to 18 Units Interconnection, 85 dB Alert, LED Visual Alert, 10 to 90 % Humidity, 2 Sensors, Quick-Connect Wiring, 40 to 100 deg F Operating, White, 5.58 in Dia x 1.97 in H