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