The SICK WTB11-2P2461 is a compact background-suppression photoelectric proximity sensor featuring a visible red PinPoint LED for precise short- to medium-range detection. It offers versatile detection from 30 mm up to 800 mm (and up to 1,100 mm under optimal conditions) and allows light/dark switching via PNP complementary output. The sensor includes a 5-turn potentiometer for fine adjustments, comes in a rectangular ABS housing with IP66/IP67/IP69K protection, and supports robust industrial performance with full circuit protection and M12 4-pin connectivity.