Kidde FireX Hardwire Smoke and Carbon Monoxide Combination Detector with 9V Battery Backup and Voice Alarm (3-Pack)

Protect your family from fire and CO dangers with the Kidde FireX front loading smoke and carbon monoxide alarm. It has a 9V battery backup to ensure the alarm works even if there's no power. It alerts you immediately with both an 85 dB alarm and a voice warning if it detects smoke or elevated carbon monoxide levels. Use it as a single station and/or multiple station alarm. Connect up to 24 alarms (18 initiating alarms) throughout your home - when one device is activated all connected alarms activate. This alarm requires a hardwire installation.85 decibel alarm followed by a voice warning announces the danger, fire or warning carbon monoxideAll interconnected alarms will sound when one alarm goes offTamper resistant - unit will lock to mounting bracket and battery door will lock to deter theft or tamperingFront loading battery door provides access to the battery chamberUnit can interconnect with up to 24 other devices of which 18 can be initiating including smoke, carbon monoxide and heat alarmsHardwired 1...