SICK WS12L-2D431 Photoelectric Sensor

SICK WS12L-2D431 is the emitter half of the WS12L through‑beam photoelectric sensor pair, designed to work with the WE12L-2P431 receiver for reliable long‑distance object detection. It operates from 10 to 30 V DC and draws about 100 mA, making it suitable for compact industrial installations where sensing logic is handled by a separate receiver. The emitter projects visible red light (650 nm) toward the matching receiver, forming a through‑beam setup that, when paired as WS12L‑2D431 + WE12L‑2P431, can achieve sensing ranges up to 80 meters. Verified applications for this pair include detecting small objects and monitoring fast‑moving targets on conveyors and other automation lines, where a robust optical switch is required across a defined gap.