The UB800-18GM40-I-V1 is a ultrasonic sensor made by Pepperl & Fuchs. It is designed to detect a range of objects from 0.3 m to 18 m and can detect objects through a variety of materials including glass, plastics and other materials with up to 40 mm thickness. The device measures the distance of objects, both mobile and stationary, and provides analogue or digital output. This sensor is designed for long-distance sensing applications such as range and height measurement, level detection, and pallet location.