USI Electric Hardwired 2-in-1 Carbon Monoxide and Natural Gas Alarm Detector Battery Backup Pull Out Drawer (6-Pack per Case)

The USI Electric MCN108 Hardwired Carbon Monoxide and Natural Gas Smart Alarm is a 2-in-1 device that provides double the protection with a single installation. This dual-sensing alarm protects against 2 deadly household threats: carbon monoxide and natural gas (or methane). Perfect for new or replacement installations, the 120-Volt AC/DC hardwired alarm is suitable for houses, apartments and mobile homes. Auto sensitivity calibration provides superior nuisance alarm protection and creates consistency in alarm sensitivity. This alarm has additional automatic features including a self-diagnostics check to ensure proper operation, a sensitivity adjustment for changes in temperature or humidity and an end-of-service life warning that sounds when it's time to replace the battery. The 9-Volt alkaline battery (included) continues protection in the event of a power outage. This alarm features a quick activation pull-tab and a front-loading battery drawer for replacement without removing the alarm from the bracket. Mount the bracket to any standard wiring junction box and use the large mounting base to cover imperfections in drywall. The plastic dust cover protects the alarm from debris and 2 tamper-resistant locks prevent unwanted alarm or battery removal.|Combines carbon monoxide and natural gas sensing technology for dual to protect your family against deadly threats in the home|Quick-draw battery drawer for replacement without removing the alarm from the bracket|Features microprocessor intelligence to virtually eliminate nuisance alarms|Quick activation pull-tab designed to quickly activate the battery|121-Volt AC/DC hardwired with lithium-free 9-Volt backup batteries to provide continuous, maintenance-free protection|Alarm is UL Listed, California State Fire Marshal approved and Federal Housing Authority (FHA) approved to exceed industry standards