The SICK UM18-211161101 ultrasonic sensor is a straight-mount type sensor. It features a detection range of 30-250mm, a PNP/NO/NC signal output and is made by the company SICK. It uses an ultrasonic signal to detect the presence and distance of an object, making it ideal for low and medium-range sensing applications. This product is extremely reliable, accurate and is designed to withstand harsh environments. It also offers a wide range of features including flexible programming, adjustable sensitivity and user-friendly operation. The UM18-211161101 is ideal for both indoor and outdoor applications and can be used to monitor, detect and start processes with precision and speed.