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Phone: 800-231-1414 or 631-231-1414 Fax: 631-231-1498 E-Mail:
 KM Series Airchime® Air Horns
Marine Rated
Edwards is a registered trademark of UTC Fire & Security

The KM series horns are the finest and most reliable air horns on the market for very large area coverage. They were developed and proven to meet the most exacting demands of the industrial and commercial trades.

The horns generate sound by means of a vibrating diaphragm that modulates the flow of compressed air into a resonating projector. All horn shapes are mathematically calculated to amplify sound while closely retaining its fundamental frequency and natural harmonics.

The signal is designed so that moisture naturally drains away from the diaphragm seat.

Designed for mounting on air supply piping, supplying between 50 and 150 PSIG (3.5 and 10.5 kg/sq cm).

Excellent for pole or roof top installation. Particularly useful for commanding attention to emergency situations in very large areas.


Cast marine aluminum horns - primed and painted
Solid bronze diaphragm head
Patented three piece hermetically sealed diaphragm
Effect. range - 1 1/4 mile (2 km)*
3/4" (19mm) NPT Inlet
Single tone frequency
Operating range - 50 to 150 PSIG
(3.5 to 10.5 kg/sq cm)
Click for Spec Sheet
KM-135 EDWARDS KM Series Marine Rated Airchime Air Horn, 135 HZ
KM-200 EDWARDS KM Series Marine Rated Airchime Air Horn, 200 HZ
KM-250 EDWARDS KM Series Marine Rated Airchime Air Horn, 250 HZ
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This page was last updated October 22, 2014

 Phone: 800-231-1414 or 631-231-1414   Fax: 631-231-1498 E-Mail:

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