BRK 9120 120V AC Hardwired Ionization Smoke Alarm

Need to relpace your discontinued BRK/ First Alert model? This BRK 9120 is a recommended replacement for the following old BRK / FirstAlert models:

* BRK 4120 * BRK 4919

Features & Benefits * Single button test/silence * 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 * Dust Cover * Easy Installation/Maintenance - Preferred features include a large opening in the mounting bracket for easy access to wiring. Keyhole slots in the mounting bracket eliminate the need to remove the electrical box screws for installation. Locking feature provided to prevent theft of the unit. Connection to AC power is made with a "Quick-Connect" wiring harness. Installation is quick, easy and cost effective. * 10-Years Limited Warranty

Technical Specification Model # 7020B Weight 8.4 oz Dimension 5.0" dia x 2.1"H Operating Voltage 120V AC 60Hz w/ 9V battery backup Operating Current .045 amps (standby/alarm) Temperature Range 40°F (4°C) to 100°F (38°C) Humidity Range 10% to 90% relative humidity (RH) Audio Alarm 85dB at 10 feet Test/Silence Electronically simulates smoke condition, causing the unit to alarm Press and hold test/silence button Alarm Reset Automatic when smoke clears Interconnections Up to 18 units of First Alert or BRK Smoke, CO and Heat Alarms. Maximum of 12 smoke alarms. See user's manual for details. Smoke Sensor Photoelectric Indicator Lights/Sounds

* AC Power: Constant Green LED * DC Power: Intermittent Red LED * Local Alarm: Red LED flashes rapidly * Remote Alarm: Red LED out.