Product Features  Pretty design and humanized function.  New designed 40 quadrant light is better to see whole workpiece more clearly than traditional light.  Smooth rod transmission with lower noise and smoother moving.  Guide rail is on granite base directly which can promise best precision for guide rail.  New OVM software with friendly user interface, simple operation and high stability. Technical Parameters Model NVM300 NVM400 Work stage Size 348×248 448×348 Measuring Range(X/Y/Z:mm) 300×200×200 400×300×200 Machine Size (mm) 855×960×1690 925×1160×1690 Machine Weight Machine Body: 250kg Working Table: 100kg Machine Body: 350kg Working Table: 100kg Lens Step-zoom lens Magnification Image magnification: 28X-145X CCD Sony high pixel CCD Operation Mode Manual Light Top light: 4 quadrants light: White(Three tricolor optional) Bottom light: White(Three tricolor optional) Transmission Mode Smooth rod Optical Ruler Resolution 1μm(0.5μm optional) Machine Load Capacity 25kg Software OVM Free Maintain Time One year Workstage and Column Material High Precision Granite Applicable Environment Power: 110V-220V±10% 50/60Hz, Temperature:20±5℃, Humidity: 45%~75% X/Y axis precision (3+L/250) μm X/Y axis repeatability 2μm