Carbon Monoxide and Smoke Alarm Detection Method Electrochemical Ionization No Interconnection Capability Power Source 9V Audible Alert 85 dB @ 10 ft Visual Alert Style LED Diameter 5 5/8 in Height 2 in Width - Digital Readout No Battery Backup No Hush Button Yes Locking Pin Yes Operating Temp 40 Degrees to 100 Degrees F Standards NFPA101 NFPA720 UL2034 Includes Mounting Hardware 9V Battery Manufacturers Warranty Length 10 yr Limited Battery Location Side
