A photoelectric sensor is equipment used to determine the distance, shape, color and presence or absence of an object by using a photoelectric receiver and light transmitter. They are mostly used in industrial manufacturing. These devices are used for performing their designated task. Photoelectric sensors found in many industries, such as material packaging, food processing, handling, and transportation. A photoelectric sensor is another type of position sensing device. Photoelectric sensors also use a light emitting diode (LED) as the light source.