Sick GL6-P0511S11 Photoelectric Sensor

The GL6-P0511S11 by Sick is a photoelectric retro-reflective sensor that features a dual-lens system, delivering accurate detection performance even under varying ambient conditions. With a maximum sensing range of up to 6 meters and an optimal operational range of up to 5 meters, it excels in detecting shiny or irregularly shaped objects when paired with a suitable reflector. This sensor utilizes a PinPoint LED light source that emits visible red light at a wavelength of 650 nm, producing a tight Ø 8 mm light spot at 350 mm, allowing for precise alignment and reliable detection. It supports a PNP output with light switching mode and offers a fast response time of ≤ 625 µs and a high switching frequency of 1,000 Hz, making it well-suited for high-speed packaging and logistics lines. The device runs on a 10 V DC to 30 V DC power supply, with a low 30 mA current consumption, ensuring energy-efficient operation. Housed in a rugged IP67-rated rectangular plastic body (12 mm x 31.5 mm x 21 mm), it’s protected against dust and water, making it reliable for use in harsh industrial environments. The integrated cable with Phoenix connector simplifies wiring and reduces installation time. Trusted for its durability and consistent performance, the GL6-P0511S11 supports engineers and system integrators in building efficient, trouble-free detection systems.

The Sick WL4S-3F2130 Photoelectric Sensor is commonly used for reliable object detection in industrial machines where size constraints are tight and accuracy is critical. For example, in automated bottling plants, this sensor is installed to detect the presence of bottles before labeling or filling. Its compact size and precise red light output make it easy for maintenance engineers to mount and align without complex tools. In industries like automotive and pharma, junior engineers use this sensor to confirm whether small components have reached a specific workstation. Its fast response and high switching frequency allow smooth integration into high-speed conveyors and pick-and-place systems. It’s especially helpful when working with transparent or colored objects, where regular sensors may struggle. Even students in instrumentation or industrial automation courses can understand sensing basics through this model. It demonstrates how background suppression and light/dark switching help minimize false detections in real-world environments. Whether in a classroom or a factory floor, the WL4S-3F2130 proves how precision and simplicity can go hand in hand for better automation results.