• Size: 5-5/8" Diameter

• AC Powered Ionization Smoke Alarm With Test Button And Battery Backup

• Ionization Smoke Sensors Are Generally More Sensitive At Detecting Small Particles, Which Tend To Be Produced In Greater Amounts By Flaming Fires

• Latching Alarm Indicator Remembers Which Unit Initiated An Alarm, Green LED Will Flash 2 Seconds On And 2 Seconds Off, Repeating Until Reset

• Single Button Test/Silence For Simplicity

• Mounting Bracket Keeps The Alarm Secure Over A Wide Rotation Range To Allow For Perfect Alignment

• Can Be Interconnected With Up To 12 Smoke Alarms And A Combination Of 6 Heat Alarms, CO Alarms And Relays

• Battery Backup Keeps Alarm Functioning During A Power Interruption

• Comes With Dust Cover To Keep Alarm Clean During Construction

WARNING: This product can expose you to chemicals including diethylhexyl phthalate (DEHP) which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.