Robust thru-beam sensor for standard applications, small design, 25 m detection range, red light, emission frequency F1, light/dark on, push-pull output, weak signal output, test input, M8 plug, Series of sensors in a widely used standard housing, TEACH-IN switch for setting the contrast detection levels, Automatic adjustment in case of soiling in contrast detection mode, High level of stability thanks to the metal housing frame, Resistant against noise: reliable operation under all conditions