The contrast sensor series DK20 have an extreme robust and IP67 tight industrial standard housing with eight M5 metal reinforced inserts for sensor mounting.The lenses are made of high grade glass.All sensors offer different light spot shapes and orientations and have powerful push‑pull outputs (NPN/PNP/pushpull).The DK20 standard contrast sensor series offers a very good contrast recognition and are available in extreme robust stainless‑steel housings (DKE).The series DK20 offer a static Teach‑In.