Sound Level : 85 DB Sensor Type : Ionization, Photoelectric Power Supply : 120 V Operating Temperature : 40 To 100 Deg F Color : White Dimensions : 5.7 In L X 5.7 In W X 2.4 In H Includes : (2) AA Battery Backup
Alarm Type : Audible Sound Level : 85 DB Sensor Type : Ionization Power Supply : 120 V Color : White Dimensions : 5.6 In L X 5.6 In W X 1.9 In H Includes : Adapter Plugs, Batteries