Get a guided demo that shows common workflows and troubleshooting tips for the Pepperl+Fuchs RLK28-5531116 retroreflective sensor. In this video, you'll see how this long-range photoelectric sensor performs in real industrial applications, learn about its polarized red light technology for reliable detection of shiny surfaces, and discover practical installation and wiring techniques for its universal 12-240V AC/DC power supply and built-in relay output.