First Alert Combination Smoke & Carbon Monoxide Alarm, Interconnect Hardwire Detector with Battery Backup, SMICO100-AC, 1-Pack

• First Alerts Precision Detection advanced sensing technology complies with new industry standards to reduce cooking nuisance alarms and provides early warning in the event of a home fire emergency

• Through early warning interconnect, when one alarm sounds, all compatible

• Quick Connect Plug allows for easy installation with no need to rewire

• Battery backup provides continuous protection during power outages

• Test/silence button for efficient testing to ensure alarm is working properly