Horn Strobe, -, Finish Red, - Mounting, Alarm Current 0.369, Peak Output (dBA) 85, Flash (Candela) 110, Standby Current (uA) -, Depth (In.) 2 in, Height (In.) 5 1/2 in, Length (In.) -, Width (In.) 5 1/2 in, Duct Opening -, Duct Width (Ft.) -, Coverage (Square-Ft.) -, Alarm Aux. Contact @ 250V -, Alarm Aux. Contact @ 30VDC -, Alarm State (mA) -, Humidity Range ( Percent RH) -, Number Required -, Standby State (mA) -, Voltage 24V DC, Standards UL 1971 UL 1638, Includes -, For Use With -