Energetic light sensors are ideal for detecting contrast differences. They detect objects depending on their surface, color and material. They are cost-effective, easy to install and align. Series=23K, Dimensions=23 x 51 x 52.4 mm, Interface=PNP normally open/closed (NO/NC), Input function=Key lock on/compensate function as button, Functional principle=Optoelectronic sensor, Optical functional principle=Light sensor, energetic, Beam characteristics=Focus typically at 500 mm, Light type=LED red light, Light spot size=15 x 15 mm in focus, Range=0...2000 mm, Connection=Connector, M12x1 plug, 4-pin, Housing material=PC ABS, Active surface, Material=PMMA, Operating voltage Ub=10...30 VDC, Approval/Conformity=EcolabCEcULusEACWEEE