All ProductsKingbrightSensorsSensorsOptical Sensors - Photointerrupters - Slot Type - Transistor Output KINGBRIGHT SensorsSensorsOptical Sensors - Photointerrupters - Slot Type - Transistor Output KRB031 ROHS COMPLIANT PACKAGE-4 MFR. Name: Kingbright KTIR0221DS ROHS COMPLIANT PACKAGE-4 MFR. Name: Kingbright KTIR0611S ROHS COMPLIANT, ULTRA SMALL PACKAGE-4 MFR. Name: Kingbright