The Sick UM18-212127112 is an ultrasonic angular sensor with a detection range of 65 to 350mm, and an analogue output of 0-10V. It features an >8kHz transmit frequency, an S18U-3 O-ring adjustable holder, an IP67 rated enclosure, an 18mm Ø cylindrical housing, 2 single-wire PNP normally open outputs, and a mounting distance of up to 25mm. This device is also able to detect retro-reflective targets automatically and is factory-calibrated for easy implementation.