The WTB4-3P2192 is a compact background-suppression photoelectric proximity sensor featuring a line-shaped PinPoint LED. Designed for reliable detection of perforated, shiny, or film-covered objects, it offers accurate detection between 40 mm and 120 mm (up to 5 mm minimal) via dual-beam detection, intuitive teach-in setup, and rugged IP66/IP67 protection—perfect for challenging industrial environments.