1、CONVENIENT AND HIGH ACCURACY: Industrial high accuracy measurement, metric system, British system two display units one button switch, more convenient to use 2、HD AND WEAR RESISTANT: High appearance level PC glass, alloy measuring surface, scratch resistant polishing mirror, LCD liquid crystal high definition display, data reading, clear display, measurement results at a glance 3、EFFICIENT MEASUREMENT: Ratchet measurement structure, efficient measurement, feel comfortable. New chip, faster and more stable measurement 4、REPLACEABLE BATTERY: With power supply battery and spare battery, battery is replaceable, CR20323V lithium battery, more convenient and fast 5、WITH STORAGE BOX: Equipped with plastic storage box, wear resistant and fall resistant, easy to use