LCD display, easy to operate, one button to switch between inches to mmBase measuring function: Inside, outside, depth and step measuring. With a small locking thumb screw which locks the jaws in place. Zero setting in any position. Ideal for use in electronics, Jeweler, mathematicians, scientists, Crafts etc. Accuracy: 0.1mm Unit of measurement: inches, millimeters Resolution: 0.1mm / 0.01in Accuracy: 0.1mm / 0.01in Material: Plastic LCD size: (About)40 x 15cm Range: 0-100mm;0-150mm Size S: 0-100mm/17.7 x 6 cm L: 0-150mm/23.8 x 7.7 cm Package List: 1 x Caliper 1 x Packing Box Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Minnanxin