PERFORMANCE PARAMETER: -------------------------------------------------------------------------------- Sound Rating: 128?dB(C) @1M Electric Motor: 7.5Kw, 380/400/440V AC, 50/60Hz IP Rating: IP44 Output Frequency: 500/560?0Hz Single Tone Net Weight: 100Kg Carton Size: 98x98x85CM DESCRIPTION: -------------------------------------------------------------------------------- LK-JDL550 is an omnidirectional siren for vertical mounting. Powered by a three phase motor. It is designed to be used in: Civil defence warning systems of major cities all over the world. Fire warning systems of community, main factories, mines, large buildings, etc. Warning for natural disasters of earthquake, tsunami, flood, etc. Warning for accidents of reservoirs, dams, jails, airports, wharf, army, etc. Please specify the voltage when placing orders with us.