SICK WL12L-2B530 Photoelectric Switch

WL12L-2B530 is a compact retro-reflective laser photoelectric sensor from SICK’s W12 family (part 1018252) that detects reflective targets up to 18 m away using autocollimation. It emits a 650 nm visible red laser with a 0.8 mm spot at 300 mm, and includes polarization filters to improve contrast on challenging surfaces; the optic is focusable from 300 mm to infinity and adjusted via a potentiometer. The sensor provides both NPN and PNP outputs with selectable DARK-ON or LIGHT-ON logic, operates on 10–30 V DC with about 100 mA current draw, and uses an M12 5‑pin connector for easy integration. In the package you get two BEF-KH-W12 clamps (with screws) and a PL80A reflector, making mounting and setup straightforward. The device is Laser Class 2 per EN 60825-1, designed for industrial environments, with an average service life of 50,000 hours at +25 °C and a calculated MTTF of 226 years. This model is well suited for detecting small objects or fast-moving items at medium to long ranges, and its DARK/LIGHT operating modes and high-precision focus make it adaptable for conveyors, packaging lines, and pick-and-place applications. Part number 1018252, WL12L-2B530 delivers precise sensing in a compact form factor with robust mounting options for reliable automation.