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=67M, Dimensions=32 x 64 x 82 mm, Interface=PNP/NPN normally open/closed (NO/NC), Input function=same function as SET button, Function principle=contrast button, Optical function principle=light button, focused, Beam characteristics=focused, Light type=blue light/green light/red light, Light spot size=1.5 x 5 mm at 9 mm, Range=6...12 mm, Connection=plug connector, M12x1 plug, Housing material=aluminum, die-cast, Active surface, Material=glass, Operating voltage Ub=10...30 VDC, Approval/Conformity=CEcULusWEEE