With the BCT series, Turck is now introducing the next generation of capacitive sensors, which are primarily intended for level detection. Instead of using a potentiometer as before, the sensors can be taught to their respective medium at the touch of a button. The BCT automatically sets the switching point so that build-up on the container wall or contamination of the sensor cap does not cause incorrect switching. A logical check of the selected setting also prevents incorrect programming with weakly detectable media.