Install reliable fire and carbon monoxide (CO) protection with the First Alert SMI100 Battery-Operated Smoke Alarm & CO400 Battery-Operated Carbon Monoxide Alarm Safety Value Pack. The SMI100 Smoke Alarm features First Alert's Precision Detection advanced sensing technology and meets new industry standards.
First Alert's 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
Battery-operated alarm allows for easy installation and maintenance
Front access battery compartment makes for easy battery replacements
End-of-life warning lets you know when it’s time to replace the alarm
First Alert's 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