Edwards KM Series Catalog Page

Outdoor Warning Systems Horns Series KB Series air horns generate sound by of a vibrating diaphragm that modulates flow of compressed air into a resonating All horn shapes are mathematically to amplify sound while closely retaining fundamental frequency and natural harmonics signal is designed so that moisture naturally away from the diaphragm seat for mounting on air supply piping between 50 and 150 PSIG 3.5 and kg sqcm and Specifications Cast marine aluminum horns primed painted Stainless steel diaphragm Effective range 1 1 4 mile 2 km 1 Single tone frequency Operating range 50 to 150 PSIG to 10.5 kg sq cm 3 4 19mm inlet NPT Not Available Information Rated Air Horn No Hz at 100ft Consumption ltr sec 67 43 38 and Dimensions Shipping lb No Subject to environmental and geographical conditions these models have a typical range of 1 1 4 mile 2 km assuming an ambient background level of 60dB a pressure of 100 psi 7.03 kg sq cm and temperature of 60 15.6 Derated per guidelines 10 dB per distance doubled in cm dB