Depth Gauge

A depth gauge is a tool used to measure how deep something is below a surface, commonly used in diving or construction. In diving, it helps determine how deep a diver is underwater, ensuring they stay within safe limits and assisting with navigation. It typically consists of a tube or device filled with air or a flexible material that changes as depth increases, providing a reading on a scale. Depth gauges are essential for safety and precision, allowing users to monitor their position relative to the surface accurately.