The UM18-211165102 is an ultrasonic angular range sensor manufactured by Sick that has a range of 30÷250mm. It has a NPN / NO / NC output type and 4 PINs. The sensor is used for detecting objects and measuring distances between objects, and is ideal for applications such as collision avoidance, distance measurement, and level detection. It features a convenient small form factor and a widely adjustable beam angle and range to support various applications. The UM18-211165102 is extremely reliable and accurate, and is capable of withstanding extreme temperatures, shocks, and vibrations.