An ideal method to warn an approximate 2 mile radius about an emergency situation. This is an omni-directional dual-tone siren for vertical mounting. The casing and horns are made of stainless steel, which will give a long service life when mounted outdoors. Powered by a three phase motor. Can be easily installed on a roof or pole by a local contractor and electrician. Sound Rating: 134±2dB(C) @1M; Electric Motor: 7.5Kw, 380/400/440V AC, 50/60Hz; IP Rating: IP44; Output Frequency: 500/560±20Hz; Effective Warning Range : 2 mile diameter; Dual Tone; Net Weight: 344 pounds; Carton Size: 60"x60"x54"