Ultrasonic sensors ub pepperl and fuchs ub800 18gm40 u v1 in all areas of industry in which sensors are affected by harsh environmental influences such as dust dirt smoke or steam ultrasonic sensors are the ideal solution for contactless position and distance measurement they can be installed in the smallest spaces and configured by teach inobjects in a wide range of materials including transparent can be detected with millimetre precision regardless of their shape and colour peppe