Smoke-CO Detector with Battery Backup, Pack of 2

Smoke/CO Detector with Battery Backup The BRK SC9120B is a smoke and carbon monoxide combo alarm with battery backup. It features a dual ionization smoke sensing chamber and a carbon monoxide sensor, 85dB horn, 9B battery backup and a "silence" feature. Applications include residential and institutional applications including hospitals, hotels, motels, dormitories and other multi-family dwellings. The "Intelligent Sensing Technology" system is designed to reduce nuisance alarms. The "Latching Alarm Indication" remembers which unit initiated an alarm. When interconnected, the unit that triggered the alarm rapidly flashes its red LED indicator. After the alarm condition subsides, the initiating unit will store in memory or "latch" the information and begin to flash the red LED indicator 2 seconds on, 2 seconds off. The "Perfect Mount" system features a gasketless base and a mounting bracket that keeps the alarm secure over a wide rotation range to allow for true alignment. This allows fine-tuning to compensate for out of alignment wall studs and to keep the wording level when wall mounting. A single Test/Silent button eliminates confusion. Depending on what mode the alarm is in, pushing the button will test, silence and re-test the alarm when in silence and clear the latching feature. Battery installation and removal can occur while the unit is mounted via the side load battery compartment.