an object, as well as to distinguish different items on the basis of their light absorption and reflection properties. Datasensor photoelectric sensor consists of an emitter and receiver unit, coupled by either a modulated LED or LASER light beam. Photoelectric sensors are available in three different functional types depending the environment and the detection objects physical properties: through beam, retroreflective, and proximity. These sensors are ideal for generic industrial applications such as counting, presence control, or automatic positioning. In addition, Datalogic offers solutions in a variety of applications such as contrast reading, distance and area measuring, as well as luminescence and color detection.