These whistles are unsurpassed because of their great sound intensity and audibility range. For navigation purposes Makrofons are manufactured in the range of 90Hz up to 370 Hz. The wide range of frequencies and higher harmonics make better penetration of an existing noise disturbance possible. Automatic bell and gong systems operating electronically or electro-mechanically complete the scope of supply. Our delivery program is rounded up with all different types of sounding or flashing under deck alarms.
Every whistle is tested in our own anechoic chamber before it leaves our works.
During the many decades of manufacturing the most reliable signal system equipment, we have put the same emphasis on our after sales service. Fast delivery when you need it - is the slogan by which we stand, and by which we promise that all urgent customers' requests shall be attended to within 24 hours.