Pneumatic horn DHR H400 Series
for ships 20-75 mmulti-tone

pneumatic horn
pneumatic horn
pneumatic horn
pneumatic horn
pneumatic horn
pneumatic horn
pneumatic horn
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Application domain
for ships 20-75 m
Other characteristics
Sound intensity

130 dB, 142 dB


The H400 Maritone is the first air horn developed by DHR which has been approved according the international rules of Colreg ‘72. An excellent whistle for seagoing vessels with a maximum length of 75 meters. It has an audible range of more than 1 nautical mile. The combination of high quality materials and precision manufacturing, provides superior durability for a lifetime operation. With the introduction of the attractive H400 Maritone, DHR positions itself as a pioneer in advanced maritime signalling solutions. ApplicationSea-going vessels up to 75m in lengthInland navigation vessels on German inland waterways (Seeschifffahrtsstraßen) Materials316L stainless steel membrane housingBrass horn with powder coated finishing WeightAir horn 2.6 KgMounting bracket 0.1 Kg Approval COLREG'72 Air consumption8 - 12 l/s at 7 BarNote that a powerfull onboard compressor with air storage tank is needed to provide enough airpressure and airflow.


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