Baumer magnetic sensors are based on the Hall principle or on magneto-resistive circuits. Since they contain no moving components such as ball bearings, they are extremely dirt resistant and show no evidence of operational wear. Magnetic sensors are characterized by: Precise, absolute sensing of rotary movements Extremely rapid sensing of toothed wheels Reliable determination of final cylinder positions Contact free, wear resistant detection principle Long service life thanks to rugged housings Compact dimensions Easy to handle and install