TT Electronics Optek OPB615 Photo IR Sensor 5Pin Optical Slotted Transmissive

Optical Photo Sensor Photointerrupter Optek OPB815WZ Deep Gap Slot IR - Lot of 4

Photointerrupter Optical Photo Sensor Optek OPB815WZ Deep Gap Slot IR - Lot of 2

5 Matched Pairs Side Looking 935nm IR LED & Phototransistor OP140 & OP550 OPTEK

OPB830 OPB840 TT Electronics Optek K-1826 Photo Interrupter 68584 #S113

OPB981T51 Photo Interrupter Optical Sensor- 24 inch - Optek - NEW

Optek TRW OPB-703A Reflective Optical Sensor NOS

OPTEK TECHNOLOGY OPB872R SENSOR SLOTTED OPTICAL SWITCH LOT OF 10PC