The OID is a distance sensor with time-of-flight measurement based on PMD technology (PMD = Photonic Mixer Device). It combines the advantages of long ranges, reliable background suppression, visible red light and high excess gain in one compact, robust M30 housing. Switch point setting of the unit is easy and intuitive via a scaled setting ring (easy-turn). A scale shows the distance set. The switch point can thus be set before installation. The accurate background suppression ensures that even shiny, matt, dark or light objects are safely detected. The unit allows any angle of incidence and thus any mounting position, which facilitates installation and saves costs. Versions with laser class 1 meet the requirements of applications in the automotive industry.