Echolocation Apparatus is a term used to describe a device that uses RADAR technology to detect objects and measure distances. RADAR, which stands for Radio Detection and Ranging, is a type of technology that sends out radio waves and then measures the time it takes for them to bounce back off of an object. This information can then be used to determine the location and size of the object. Echolocation Apparatus is often used in navigation, military operations, and weather forecasting.