First Alert Battery-Powered Ionization Smoke Alarm is designed to provide advanced fire detection and peace of mind for your home. Equipped with Precision Detection advanced sensing technology, it delivers early warning alerts while minimizing cooking nuisance alarms. This UL-listed alarm is battery-operated for easy installation and maintenance, featuring a front-access battery compartment for quick s. With an end-of-life warning and included 9-volt battery, this smoke alarm ensures reliable protection for up to 10 years. Model Number: 1046827