The SICK W4 WLD4FP-21311130ZZZ is a compact retro-reflective photoelectric sensor engineered for reliable object detection in industrial automation. Its PinPoint red LED and dual-lens optical design deliver precise switching on shiny or structured surfaces, while the polarization filter ensures stable detection through a reflector in demanding conveyor and machine-building environments.

Designed for fast, repeatable performance, this sensor achieves a sensing range up to 4.5 m (recommended 0.035–3.9 m with reflector P250) and supports push-pull PNP/NPN output with dark-on switching. A response time of ≤500 µs and a switching frequency of 1 kHz enable high-throughput applications. The rugged VISTAL housing rated IP66/IP67 withstands shock, cleaning agents (ECOLAB), and ambient light up to 50,000 lx; BluePilot alignment and teach-in simplify setup across -40 to +60 °C.

Choose the WLD4FP-21311130ZZZ to shorten commissioning, increase uptime, and standardize on a durable M8 3-pin platform, backed by a 1-year warranty that supports dependable operation throughout your maintenance cycle.

• Brand: SICK
• Series: W4
• Model: WLD4FP-21311130ZZZ
• Sensing range: 0 to 4.5 m
• Output type: Push-pull (PNP/NPN)
• Switching mode: Dark-on
• Connection type: M8 3-pin plug
• Protection rating: IP66/IP67