Light sensors with background suppression ensure reliable detection regardless of surface, color and material. Their sensing mode is almost constant even with different degrees of remission. Series=23K, Dimensions=23 x 51 x 52.4 mm, Interface=Normally open/Normally closed (NO/NC), Input function=same function as button key lock on/off, Functional principle=Optoelectronic sensor, Optical functional principle=Light transit time measurement, Optical special feature=Background suppression, Beam characteristics=divergent, Light type=Laser red light, Light spot size=Ø 7 mm at 5 m, Range=0...5 m, Connection=Connector, Housing material=PC ABS, Active surface, Material=PMMA, Operating voltage Ub=18...30 VDC, Approval/Conformity=CEEcolabcULusEACWEEE