/products/manufacturers/bulgin/b/blog/posts/diffused-through-beam-and-retroreflective-sensors---what-s-the-differenceSensing light is immensely useful in many applications. Want to check everything on your production line is stood up and oriented correctly? Need to count small items your manufacturing system is making? And want to do it all reliably, cost-effectiveen-USTelligent Community 12