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Eaton E57 Premium + Series inductive proximity sensors detect metal targets using electromagnetic energy. These units are ideal for machine tolls, assembly lines and other automotive applications.
There are three types of optical proximity sensors: through-beam, retro-reflective and diffuser sensors.
Inductive sensors identify metal targets when they are close to an inductive coil sensor, whereas capacitive sensors identify changes in capacitance between a sensor and an electrode.
PNP sensors output a positive signal to industrial control input, whereas NPN sensors output a negative signal when they are turned on.