LK-JDL550large electromechanical sirenis 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.

　　Dimention