The SICK WTB16P-24161120A00Z is a photoelectric proximity sensor from the W16 series, built for object detection at distances up to 1 m. The 1 m maximum sensing distance means it reliably detects targets within that range, with a minimum detection gap of 10 mm — so it can spot small parts passing close to the lens without false triggering on background clutter. The red LED light source is visible during alignment, which speeds setup on the line. Output is configurable as PNP, NPN, or Push-Pull, which gives flexibility whether you're wiring into a sinking or sourcing PLC input card. The M12, 4-pin connector makes field replacement quick — unplug the old sensor, plug in the new one, no rewiring. Rated IP69, so the housing and optics survive high-pressure, high-temperature washdown cycles typical in food-and-beverage or pharmaceutical lines. Response time is 500 µs, fast enough for counting parts on a moderate-speed conveyor or detecting objects at a pick-and-place station. Operating voltage range is 10 to 30 VDC, and the load current is rated at 100 mA — enough to drive a small relay or PLC input directly.
The M12 connector exits the back, so plan for a 4-pin female cordset with a straight or right-angle connector depending on your cable routing. IP69 means it handles washdown without a secondary cover, but verify the cordset is also rated IP69 if the entire run is exposed to high-pressure spray.