First Alert 1046884 Smoke and Carbon Monoxide Alarm, Ionization Sensor (Pack of 12)

Sound Level : 85 DBA
Sensor Type : Ionization
Power Source : Battery
Power Supply : Interconnect Hardwire
Color : White
Dimensions : 5.6 In L X 5.6 In W X 1.9 In H

Alarm Type : Voice
Sensor Type : Electrochemical, Photoelectric
Power Source : Battery
Color : White
Dimensions : 5.67 In L X 5.67 In W X 1 In H

Alarm Type : Voice
Sensor Type : Photoelectric
Power Source : Battery
Color : White
Dimensions : 5.13 In L X 5.13 In W X 1 In H

Sound Level : 85 DB
Sensor Type : Electrochemical
Power Source : Battery
Power Supply : 1.9 V
Dimensions : 3.4 In L X 1.38 In W X 5 In H
Includes : Battery

Sound Level : 85 DBA
Sensor Type : Photoelectric
Power Source : Battery
Color : White
Dimensions : 5.67 In L X 5.67 In W X 1 In H

Sensor Type : Ionization
Power Source : 120 V With Battery Backup
Color : White