Kidde KN-COB-IC Hardwired Carbon Monoxide Alarm (120v) w/ 9v Battery Backup

Features: Battery Pull Tab – Eliminates battery installation time and keeps battery fresh. Adjustable Mounting Bracket – Allows for fast installation and perfect alignment. Quick Connect –Installs quickly with snap-on harness. Sealed Cover –Reduces nuisance alarms. Sealed to protect sensor from contaminants prior to installation. Tamper Resist Locking Feature –To deter battery and alarm theft. Alkaline Battery Backup – for continuous protection in case of power failure.