All ProductsLite-OnSensorsSensorsOptical Sensors - Photointerrupters - Slot Type - Transistor Output LITE-ON SensorsSensorsOptical Sensors - Photointerrupters - Slot Type - Transistor Output LTH-301-05 MFR. Name: Lite-On LTH-301-32 OPTICAL SENSOR TRANSMISSIVE 0.591" (15MM) PHOTOTRANSISTOR MODULE, PC PINS, SLOT TYPE MFR. Name: Lite-On LTH-301A OPTICAL SENSOR TRANSMISSIVE 0.205" (5.2MM) MODULE, PC PINS, SLOT TYPE MFR. Name: Lite-On