Hiler for compressor MAKROFON M75/370

Hailer for use with compressed air.
IMO Class III With BSH (Federal Maritime and Hydrographic Agency) certification for boats up to 75 m long.
Steel trumpet, gray painted tumbled finish. Brass membrane housing. The brass membrane can be adjusted and cleaned.

Essential onboard compressed-air supply: 6 - 40 bar, 8-10 l/sec.
Frequency: Sonorous deep tone: 370 Hz.