Balluff fiber optic sensors are used when a conventional optosensor is too large or too inflexible for the application. Our fiber optic sensors are combined with either a plastic or fiber optic to form a complete sensor. Their different properties give you maximum flexibility depending on the application. Series=72K, Dimensions=10 x 40.1 x 73.5 mm, Interface=PNP normally open/closed (NO/NC), Functional principle=Fiber optic device, Input function=Key lock on/compensate function like SET button, Setting options=Teach-in mode normal/fineLight/dark switchingTime function on/offSensitivity (Sn), Operating voltage Ub=12...24 VDC, Light type=LED red light, Connection=Connector, M8x1 connector, 4-pin, Housing material=ABS, Switching frequency=1000 Hz, Approval/Conformity=CEcULusWEEE