ZÖLLNER Bell and Gong

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ZÖLLNER Bell and Gong


Product Features

According to rule 33(a) of the COLREG 1972, a vessel of 20 meters in length or more shall be provided with a bell and a vessel of 100 meters or more shall in addition be provided with a gong. The sound pressure level at 1 m distance shall be at least 110 dB



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