Outdoor Horn Strobe, Two-Wire, Finish Red, Wall Mounting, Alarm Current 88ma-218ma DC Max, Peak Output dBA 88, Flash Candela 15-115 Selectable, Depth In. 2 1/2 in, Height In. 5 5/8 in, Length In. 4 3/4 in, Width In. 4 3/4 in, Ambient Temp. Limits F -40 to 151 Degrees , Humidity Range Percent RH 10-93, Voltage 12-24V DC, Includes Universal Mounting Plate, For Use With Fire Alarm Panel