Self-contained air horns are used for applications where an air supply is not available or desired. These units are available in 2 model variations featuring our KMJ-4 or KMJ-5 air horn and consist of a motor directly connected to a rotary compressor. Like a junior model of the famous Airchime KM Series it is designed featuring a horizontal bell with horizontal diaphragm head so that water will drain away from the diaphragm seal.

Because the horns are cast in light weight aluminum, they feature excellent corrosion resistance that will give years of trouble free service. All fasteners are corrosion proof stainless steel. No adjustment to diaphragm are necessary.

Compliant with collision regulation standards for sound signal appliances at sea (72 COLREGS). A certificate of compliance is issued with each unit at time of purchase. These quality KMJ-SC models meet or exceed the current IMO/Coast Guard collision regulations for Class IV; vessel length less than 20m; an Class III vessel length 20m to 75m.