The SICK WL2S-P211 is a compact retro-reflective photoelectric sensor in the W2 Slim family that detects objects by coordinating with a PL20A reflector at short to medium distances. It operates on 10–30 V DC with ripple under 5 Vpp and provides a PNP light-switching output rated to 50 mA. The sensing range is 0.04–0.8 m, the light source is a 660 nm visible red PinPoint LED, and the light spot measures about Ø10 mm at 100 mm distance. The housing dimensions are 7.6 x 25.1 x 12.5 mm (W x H x D) with a rectangular form, and the unit carries a part number 1024249; average service life is listed as 75,000 hours at 25 °C.
