• Size: 5-5/8" Wide X 3-3/32"

• 3 Way Protection: Carbon Monoxide, Propane And Natural/Methane Gas

• Plug In With Battery Backup Electrochemical Sensor 3-In-1 Explosive Gas And Carbon Monoxide Alarm With Digital Display And Test Button

• Electrochemical Sensors Are The most Accurate Technology Available For Detecting Carbon Monoxide

• Digital Display Provides Easy Viewing Of Danger Levels, Current And Peak CO Levels In Your Home

• Designed To Be Wall Mounted So Screen Is Visible

• Single Button Test/Silence For Simplicity

• Loud 85dB Alarm To Assure Alarm Is Heard

• End Of Life Alarm Notifies You At 60 Months After Installation

• Power Source: 120V Outlet With 9V Battery Backup (Included)

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.