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Sound Signal Direction Detector SRD 414/4


  • System Voltage: 24 V DC 30 % / - 10 %
  • Dimensions (L X W): Master Control Panel: 144x144 mm; Microphone Sensor Unit: 843 x 242 mm
  • Weight: Master Control Panel, 1.6 kg; Microphone Sensor Unit, 7.2 kg


  • Enables officer on watch to hear outside sound signals inside a fully enclosed bridge in order to perform look out function as required in Colregs
  • Receives signals from all directions in the 70Hz-2100Hz range, reproducing incoming sound signals inside bridge through a loadspeaker and indicating approximate direction of signal on the speaker panel
  • Digital technology
  • Simple installation, does not require calibration
  • 1 microphone sensor unit and master control panel
  • Full compliance with Colregs 1972 Annex III, IMO, and USCG regulations
  • Approved by all well known international authorities and classification societies



Zöllner offers complete ship set solutions: Horns, bells, gongs, maneuver lamps, sound reception devices, signal controllers, and inclinometers

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