The First Alert Smoke Alarm with smart sensing technology and nuisance resistance provides the two times the protection with a single installation and equipped with both ionization and photoelectric technology. This alarm protects you against both fast flaming and slow smoldering fires and the smart sensor virtually eliminates nuisance alarms.

With a quick draw battery drawer you'll never have to remove the alarm from the mount to replace the batteries. With a single silent test button on the front of the alarm you can easily perform weekly tests to assure your alarm is functioning properly.

When the alarm is triggered you'll hear a loud 85 decibel T3 pattern chirp to alert you. The first alert SA320Cn comes with a 10 year limited warranty