Contrinex 120254-0063 Proximity Sensors Contrinex Photoelectric Sensor, 4mm Diameter Smooth Housing, Through-Beam (Receiver), 250mm Operating Distance, PNP, Dark-ON, 2m 3-wire PVC Cable, 35mm Housing Length Engineering/Old PN: LLR-D04MA-NMK-404 Status: Active Overview: Contrinex Inductive