Sealed-In Lithium Battery – Sealed-in lithium power supply; no battery replacement required over the 10 year life of the alarm Eliminates worry about battery removal or unauthorized deactivation of alarm

Self Activation – Alarm automatically activates when attached to the mounting bracket

Alarm Memory – Rapidly flashing LED alerts user if the alarm has sounded since the last time the test/reset button was used

Smart Hush™ – Will temporarily silence nuisance alarms and will not allow hush mode to be activated unless the unit is in alarm mode

End of Life Warning – Alarm chirps every 30-45 seconds indicating the alarm is in need of replacement

Ionization Sensor – Protects best on fast flaming fires