Sick WL12-3P2441 Photoelectric Sensor

The Sick WL12-3P2441 Photoelectric Sensor features a retro-reflective sensing principle with autocollimation, allowing it to detect objects with high positional accuracy regardless of background interference. It offers a stable sensing range of 0 to 5 meters, extendable up to 7 meters, making it ideal for conveyor systems and packaging stations. The sensor emits a visible red LED beam at 640 nm, focused into a Ø 100 mm spot at 3 meters, ensuring consistent detection of even low-contrast or irregular targets.

It supports both light and dark switching with a complementary PNP output, and delivers rapid performance with a response time of ≤ 330 µs and a switching frequency of 1,500 Hz. Designed for operational efficiency, it runs on a 10 V DC to 30 V DC supply and consumes only 30 mA. The integrated 5-turn potentiometer allows fine-tuning of sensitivity to suit various object sizes and reflectivities.

Built with a robust metal rectangular housing and PMMA front lens, this sensor is rated for IP66, IP67, and IP69K protection, offering resilience against dust, water jets, and high-pressure cleaning. Its compact 15.6 mm × 48.5 mm × 42 mm form factor and M12 4-pin male connector enable easy integration into tight control cabinets and machine surfaces. Widely used in high-speed sorting, detection, and counting applications, the WL12-3P2441 combines performance, durability, and flexibility trusted by automation engineers worldwide. View Official Sick WL12-3P2441 Product Page.

The Sick WL4S-3F2130 Photoelectric Sensor is widely used in industrial automation where accurate object detection is essential, even when space is limited. It is commonly deployed in machinery that handles transparent or reflective items—like glass containers, blister packs, or chrome components—where traditional sensors might fail. In packaging lines, it ensures the presence of items before sealing or labeling, helping prevent costly errors. Its consistent detection regardless of background or lighting conditions makes it especially reliable in fast-moving processes.

In electronics and component manufacturing, this sensor helps confirm the presence of small parts like PCBs or connectors during high-speed assembly. Because it requires minimal recalibration and maintains stable performance across varying material finishes, it reduces downtime and support calls. Maintenance teams value it for its “install and forget” behavior, while engineers appreciate its compact design and easy alignment. Whether you're building a new line or upgrading an older system, the WL4S-3F2130 provides confidence, precision, and efficiency in every application.