About This 【High Precision Measuring Tools 】Kynup digital caliper measuring range is 0-6inch/150mm, accuracy ± 0.001"/0.02 mm, resolution of 0.0005"/0.01 mm. for more precision measure results, our caliper measuring tool is suitable for jewelry measurement, household, DIY, woodworking, etc. 【Longer Lifespan】With a complete power-off button shutdown, Kynup digital caliper measuring tool is completely powered off when the button is pressed, which does not consume battery power and provides a longer service life than other micrometer caliper digital.Note: please do not install the battery backwards. 【3 Units Conversion】Our dial caliper micrometer can be freely switched among inches, millimeters and fractions. 3 kinds of unit switching function can meet your different habits and needs. Digital calipers 6inch more convenient, more widely used to measure the value you want. 【Screen Splash Proof & Stainless Steel Material】The dial caliper micrometer is constructed of first-class STAINLESS STEEL, screen splash water protection, anti-rust, which has a strong frame with lockable head. The housing is made of metal with silver paint on the surface. 【4 Measuring Ways】 This digital caliper measuring tool is easy to measure depth, step, external and internal diameter, making all your objects measurable. 3 batteries are provided: one installed and other two as spare batteries. Auto shutdown for saving battery after within 6 minutes if without operation. Overview Brand : Kynup Material : Stainless Steel Product Dimensions : 9.28"L x 3.03"W Range : 0-150mm millimeters Measurement Accuracy : 0.02mm