The E3JM-10M4-G-NN is a Linear Displacement Sensor Photo Eye manufactured by Omron. It is a non-contact optical sensor designed to measure the displacement of an object in a linear motion. It consists of an emitter, a receiver, an encoder, and a host of other components. The emitter utilizes an infrared LED (Light Emitting Diode) to detect the object, while the receiver uses a CCD (Charge Coupled Device) to process the information. The encoder converts the signal from a photoelectric sensor into a digital code which is then sent to a processor. The processor uses algorithms to calculate the displacement of the object in relation to its initial position. This sensor is designed to be used in applications where precise and accurate feedback is required.