SICK WTF12-3P2431 Through-Beam Photoelectric Sensor

SICK WTF12-3P2431 is a compact through-beam photoelectric sensor from the W12 family with foreground suppression, designed for reliable detection of flat objects in tight spaces. It covers a sensing range from 30 mm to 175 mm and uses a visible red LED at 640 nm with a light spot of about Ø2 mm at 60 mm, enabling precise targeting on small features. Adjustment is via a five-turn potentiometer, and the unit features a PNP switching output through a 4‑pin M12 connector, supporting either light-on or dark-on operation. The package includes two BEF-KH-W12 clamps with screws for straightforward mounting, and the device is specified for 90% remission targets per DIN 5033. Typical performance data include an average service life of 100,000 hours at 25 °C and an MTTF of about 810 years, underscoring long-term reliability in industrial environments. With its right-sized rectangular housing and foreground-suppression capability, WTF12-3P2431 is well-suited for inline sensing where background interference is a concern and space is at a premium.