Ifm electronic oge series through beam photoelectric sensor receivers 8m ifm electronic oge dpkgus this through beam sensor receiver of the dark on type detects the light beam from a transmitter and produces a switched signal if an object enters the sensing zone the sensor is especially useful where reliable and non contact detection of the exact position of objects is required the unit has an m18 x 1 threaded cylindrical body that is robust and long lasting ifm oge dpkgus oge100 throu