• Size: 5-5/8" Diameter

• AC Powered Dual Ionization Smoke Sensor And Electrochemical CO Sensor 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

• Electrochemical Carbon Monoxide Sensor Is The Most Accurate Sensor Available

• Two Latching Alarm Indicators, Remembers Which Unit Initiated An Alarm, Green LED Will Flash 2 Seconds On And 2 Seconds Off, Repeating Until Reset And Low Battery Latch Alarm Identifies Which Unit Is In Low Battery Condition

• Intelligent Sensing Technology Reduces The Number Of Non-Emergency Or Nuisance Alarms

• Single Button Test/Silence For Simplicity

• End Of Life Alarm Notifies You At 120 Months After Installation

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

• 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.