Available. The SICK WLD4FP-213121A0ZZZ is a miniature photoelectric retro-reflective sensor designed for precise object detection in industrial automation applications. Operating within a sensing range of 0 to 4.5 meters, it utilizes a dual lens system to maintain a minimum distance to the reflector, ensuring reliable performance in various environments. The sensor emits visible red light through its PinPoint LED, producing a point-shaped light spot with a diameter of 38 mm at a distance of 1 meter. Its compact VISTAL® housing offers durability and resistance to harsh conditions. The sensor features a 3-pin M8 connector for easy integration into existing systems. With a supply voltage range of 10 to 30 VDC and a response time of 500 µs, it supports both NPN and PNP push-pull switching outputs, making it versatile for different control systems. The WLD4FP-213121A0ZZZ is suitable for applications such as checking storage space occupancy, detecting flat and glossy packages on conveyor belts, and monitoring feed of label films, providing high reliability and performance in compact form factor.