Integrating linear guides and encoders in one, greatly increasing space efficiency. It combines the high rigidity of linear guides with the high precision of magnetic encoders. The built-in ruler and the inductive read head are not easily damaged by external forces. Signal sensing is non-contact and has a long product life. It can be used for long distance measurement (the magnetic ruler can reach 30m). The measurement characteristics are not changed by the harsh working environment of oil, water, dust and chips; it is also suitable for vibration, noise and high temperature environments. Good resolution. Easy to install.