Balluff fiber optic sensors are used when a conventional optosensor is too large or too inflexible for the application. Our fiber optic sensors can be 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=18M, Dimensions=Ø 18 x 75 mm, Interface=2x PNP normally open/closed (NO/NC), Functional principle=Optoelectronic sensor, Setting option=Sensitivity (Sn), Operating voltage Ub=10...30 VDC, Light type=LED red light, Connection=4-pin plug connector, Housing material=Brass, Switching frequency=1000 Hz, Approval/Conformity=CEEACcULusWEEE