Photoelectric sensors, W250-2, WTB250-2R1541, Functional principle: Photoelectric proximity sensor, Functional principle detail: Background suppression, Switching output: Relay, Switching mode: Light switching, Connection type: Cable, 5-wire, 2 m, Light source: LED, Adjustment: Potentiometer, Communication interface: -, Included with delivery: BEF-W250 mounting bracket