Foghorn Windfarm

2 NM

The MSM foghorn, model MSN-20 automatically provides a 360º beam of sound in the horizontal plane, it is specifically designed to be installed in places with thick fog or in windfarms.

Designed as an aid to navigation, it provides an audible range over 2 nautical miles.

It is manufactured with high-quality and resistant manufacturing materials to achieve a long-service life under the harshest marine conditions.

Ideal for off-shore locations requiring a low consumption, such as isolated solar-powered applications.

So, in case that one emitter is failed, the range of this foghorn is reduced from 2 nautical miles to 1,5 nautical miles.

Designed according to IALA Recommendation G-1162 & E-109 and IALA Guideline 1090

Technical specifications

Audible range

Over 2 nautical miles

Beam of sound in the horizontal plane


Emission of 134 dB at 1 meter

800Hz – 850 Hz (accuracy 0.2Hz).

Average operation lifetime

over 10 years.

IP 66 watertightness degree.
Protection against corrosion.
Ready to be charged by solar energy or conventional batteries.
Control unit based on microprocessor.
Audible signal Morse code (Letter U or A)

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