SICK WLL6-P122 Photoelectric Sensor

The SICK WLL6-P122 is a fiber-optic photoelectric switch in the WLL6 family, leveraging a fiber optic interface to perform reliable object detection in compact spaces where direct sensing is impractical. It runs on 12–24 V DC, provides a PNP output, and includes adjustable settings that let technicians fine-tune its response to match varying sensing requirements. Weighing roughly 0.25 lb, the WLL6-P122 also specifies an operating temperature range from -25 to +50 C, enabling stable performance across typical factory environmental conditions. According to SICK distributor data, the WLL6-P122 is discontinued by the manufacturer, with the WLL160-F122 listed as its successor in the product line. The model is cataloged as WLL6-P122 (also cited as WLL6P122) in multiple distributor listings, confirming its identity as a fiber-optic photoelectric switch and helping buyers distinguish it from other WLL-series sensors.