S41 Analog Proximity Sensor

S41 20mm Analog Output Proximity Sensor* Rectangular shape analog inductive proximity sensor,40.5*40.5*58mm, ABS plastic housing.* Detect distance: 20mm.* Distance and sensitivity are adjustable by potentiometer. * Widely used for controlling position; measuring deviation of control position, curve and excursion. Measuring height of swing and the stability of dimension control...etc.