Power Source : Plug-In
Voltage : 120
Sensor Type : Electrochemical
Width (In.) : 1.38
Height (In.) : 5
Length (In.) : 3.4
Battery Back-Up : Yes
Decibel Level : 85dB
Battery Type : 9V Alkaline
Batteries Included : Yes
Color : White
Certification : UL Listed
Warranty : 7 Yr. Limited
Package Quantity : 2