105J Digital measuring microscope Digital measuring microscope 105J is a large measurement precession microscope. The instrument used grating displacement sensor system for a high-efficiency optical measurement apparatus, with readings intuitive, simple, and to improve the efficiency of equipment and the use of granite for the base so that the stability of better equipment and so on. It is widely used in measuring the various enterprises; all levels of testing and calibration laboratories, as well as other sectors such as scientific research work in the measuring.