DHR H400 MARITONE Signal compressed air horn

Approved for seagoing vessels up to 75 metres in accordance with COLREG '72, Class III, and for all inland waterway vessels.

The H400 Maritone air horn from Den Haan Rotterdam has an audible range of more than one nautical mile.

The diaphragm housing is made of 316L stainless steel, the diaphragm of phosphor bronze. The acoustic horn is made of brass and painted white (red inside). These high-quality materials ensure a long service life.

A compressor with a pressure of at least 7 bar and an air volume of 8-12 l/s, a 8x10 mm compressed air tube with connector, a magnetic valve and a push button or control panel are required for operation. You will find all this under "Accessories" further down on this page.

Specifications:

• Sound pressure: 130 dB at 1/3 octave or 140 dB(A)
  
• Frequency: 440 Hz
  
• Compressed air required: 7 bar
  
• Air consumption: 8 to 12 l/s
  
• Connection: ¼" with coupling for plastic hose (⌀ 10 mm).
  
• Materials: Diaphragm housing made of stainless steel (1.4401) and a brass horn with white (red inside) powder coating
  
• Approval: Sea-going vessels up to 75 metres in length and inland waterway vessels on German inland waterways