brk co5120pdbn carbon monoxide detector 120v hardwired w battery backup digital display

Hardwired carbon monoxide alarm with digital display and battery back-up meets codes where CO alarms are required for new construction. Features:   » Electrochemical Carbon Monoxide Sensor - the most accurate sensor available as compared to other sensing technologies» LCD digital display with memory» Single button test/silence» 9V Alkaline Battery Backup» Latching alarm indicator - remembers which unit initiated an alarm» Two silence features - can silence the low-battery chirp for up to eight hours or temporarily silence an unwanted nuisance alarm» Intelligent Sensing TechnologyTM helps reduce the number of nuisance alarms» 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. A battery pull tab keeps the battery fresh until the home is occupied. Battery installation and removal can occur whil