Depth Sounder
A depth sounder is a device used to measure the depth of water beneath a ship or boat. It works by sending a sound wave from the ship's hull to the seabed and measuring the time it takes for the wave to bounce back. This time is then used to calculate the depth of the water. Depth sounders are an essential tool for safe navigation, as they allow the crew to determine the depth of the water and avoid running aground or hitting underwater obstacles.
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