Interconnect Hardwire 2-in 1 Smoke and CO Alarm with 10-Year Battery Backup

Install convenient 2-in-1 detection against both smoke and carbon monoxide with the First Alert SMICO105-AC Smoke and CO Alarm with 10-Year Battery Backup. Meets industry standards and can interconnect with other compatible detectors to create a whole home alarm system to help provide an early warning. First Alert's Precision Detection advanced sensing technology complies with industry standards to reduce cooking nuisance alarms and provides early warning in the event of a home fire emergency 10-Year battery backup provides continuous protection during power outages Through early warning interconnect, when one alarm sounds, all compatible* alarms will sound Quick Connect Plug allows for easy installation with no need to rewire End-of-life warning lets you know when it’s time to replace the detector Test/silence button for efficient testing to ensure alarm is working properly