Optical Comparator Resolution 0.0001 in/0.001mm Accuracy +/-0.1 Percent Or Less (Contour) +/-0.15 Percent Or Less (Surface) Contour Illumination 24V 150W Halogen Bulb Effective Table Working Area 7 1/4 in x 3 1/4 in Image Type Inverted Image Magnification - Included Lens 10X Measuring Unit Linear Scale Optical System Orientation Vertical Projector Series Mitutoyo PJ-A3000 Screen Size 12.4 in Surface Illumination 24V 150W Halogen Bulb Table Size 9 15/16 in x 9 15/16 in