Large field of vision, test intuitive and easy to operate, high efficiency detection of various complex shape of the workpiece contour and surface dimensions, instrument configuration grating digital measuring systems, digital display of measurement results, with high accuracy, is widely used in cable, rubber and machinery, electronics and other industries. Measuring range: XY: 150 * 100mm, digital readouts μm resolution projection screen:. Φ300mm (with m word lines, rotation angle resolution digital 0-360 ?, 1 ') objective: standard 10 × (optional 20 ×, 50 ×), projection screen movements focusing, fast / slow transmission mechanism through reflective lighting, halogen lamps 24V / 150W dimmable Optional:.. a round table, thimble holder, two-dimensional measurement software.