SMC WT27-2F410 Photoelectric Sensor Switch Unit

The SICK WT27-2F410 Photoelectric Sensor with Background Suppression is a compact infrared-LED sensing device designed for reliable object detection on conveyors and packaging lines. It provides a 100 to 1,500 mm sensing range, operates from a 10–30 V DC supply, and draws about 25 mA, making it suitable for low-power automation schemes. The sensor features a PNP switching output and a four-pin M12 connector, and it carries IP65 ingress protection for use in dusty or damp environments. Identified by the part number 1013268, the WT27-2F410 belongs to SICK's WT27 family and uses a background-suppressing, reflective light principle to detect targets against backgrounds, including reflective or dark objects. Common applications include presence/absence sensing on production lines, packaging equipment, and automated handling systems, where a single, clean switch signal is required from a compact sensor.