Kidde Fire 120V AC/DC, Photo/Ion Dual Sensor wire-i

Kidde 21007915 Firex Dual Sensor Smoke Alarm With Battery Backup, 85 DB At 10 FT Loud, 60 HZ Operating Frequency, 120 VAC Operating, 40 - 100 DEG F Operating, Environmental Conditions: Up To 85 PCT Relative Humidity (RH), Dual Ionization And Photoelectric Sensor, Dimensions: 5-3/4 IN Diameter X 1.8 IN Depth, Flashing LED Display, Mounting: Single Gang Electrical Box, Up To 4 IN Octagon Box, Included: 9 V Battery, Sensitivity: 0.72 - 3.45 PCT/FT, UL 217, NFPA 72, (Chapter 11 2002 Edition) The State Of California Fire Marshall, NFPA 101 (One And Two Family Dwellings) Federal Housing Authority (FHA), Housing And Urban Development (HUD)