5-1/2" Smoke Alarm with 85dB @ 10 ft., Horn Audible Alert; 120VAC, Sealed Lithium Ion

Operating Temp.: 40 Degrees to 100 Degrees F Includes: Mounting Bracket
Diameter: 5-1/2" Hush Button: Yes
Power Source: 120VAC, Sealed Lithium Ion Manufacturers Warranty Length: 10 Year Limited
Height: 1-3/4" Visual Alert: Green LED Power, Red LED Alarm
Locking Pin: Yes Test Button: Yes
Audible Alert: 85dB @ 10 ft., Horn Depth: 1-3/4"
Battery Backup: Yes Interconnection Capability: Up to 24 Units
Digital Readout: No Width: 5-1/2"
Features: 10 Year Sealed Unit, Alarm Memory Detection Method: Ionization
Standards: UL217 Item: Smoke Alarm