Contrast sensors are high-resolution light sensors that differentiate objects according to their gray values. The robust contrast sensors from Balluff detect even small contrast differences, have a high switching frequency of up to 30 kHz and are therefore particularly fast. They enable high positioning accuracy and are therefore suitable for a wide range of applications, for example in the printing and packaging industries. Series=M, Dimensions=31 x 97.8 x 62.3 mm, Interface=PNP/NPN normally open/closed (NO/NC) analog, Voltage 0.5.5 V, Input function=same function as button, Functional principle=Contrast sensor, Optical functional principle=Light sensor, focused, Beam characteristics=focused, Light type=White light, Light spot size=Ø 3 mm at 9 mm, Range=7...11 mm, Connection=Connector, M12x1 plug, 4-pin, Housing material=Zinc, die-cast, Active surface, Material=Glass, Operating voltage Ub=10...30 VDC, Approval/Conformity=CEWEEE