The Superprox Model SM200FP Series is a low-cost, ultrasonic proximity sensor that offers the combination of a small, 33 x 7.62 x 19.05 mm flat-profile housing. It provides reliable detection of all materials at distances of 6.35 mm to as far as 102 mm from the sensor face.

The sensor can be either field programmable or fixed field from the factory. The unit requires no adjustments to compensate for the different materials being detected, including metals, rubber, and plastics. No adjustments are required for colors, light conditions, and distance either.