The SICK WSE250-2P2431 is a through-beam photoelectric sensor from the W250-2 series, designed for detecting objects across a 50 m gap with a visible red LED beam. That 50 m range means it handles long conveyor spans, warehouse aisle entrances, or crane travel limits where a retroreflective or proximity sensor would lose signal. The 500 µs response time keeps up with fast-moving cartons or pallets on a high-speed line without missing triggers. Output is PNP, 100 mA load capacity, switchable Light-ON or Dark-ON via the wiring — standard for PLC input cards in 24 VDC control systems. IP67 rating means the housing and optics survive washdown, dust, and rain — suitable for food processing, outdoor logistics, or wet manufacturing zones. The M12 4-pin connector allows a quick field swap without opening the panel or re-terminating a cable gland. Operating range is 10–30 VDC, -25 to 55 °C, covering most industrial environments.
The 20 mm wide housing fits standard 20 mm slot-mount brackets common in SICK W250-2 tooling. Height is 65 mm, depth 43.9 mm — compact enough for tight spacing on a machine frame or a sensor rail. Through-beam requires emitter and receiver alignment across the gap; the visible red LED simplifies setup with a quick visual check.