Duct Smoke Detector, Photoelectric, Finish Clear Plastic, Surface Mounting, Alarm Current 35 mA, Peak Output (dBA) -, Flash (Candela) -, Standby Current (uA) 25 uA, Depth (In.) 1 7/8 in, Height (In.) 5 7/16 in, Length (In.) 14 1/2 in, Width (In.) -,...