RECHARGEABLE DESIGN FOR GREATER CONVENIENCE: This unipec digital caliper ditches traditional batteries in favor of a built-in rechargeable battery, eliminating the hassle of frequent replacements. Featuring a Type-C charging port, it charges significantly faster—fully charged in just 20 minutes—and supports continuous use for up to 3 months. Compared to other electronic calipers, it offers superior energy efficiency and environmental friendliness. ACCURATE MEASUREMENT AND ZERO SETTING: This digital caliper glides smoothly. Measuring range: 0 -6 / 0-150mm; Accuracy: ± 0.001 / 0.03mm; Resolution: 0.01mm/0.0005 /1/128 . At the same time, the smart design allows you to easily reset to zero by pressing a button and start a new measurement at any point on the scale, which is very suitable for differential measurement. 4 MEASUREMENT MODES: The digital caliper has 4 measurement modes, which can be used to measure inside and outside diameter, depth, and step with two sets of jaws and a probe. Multiple measurement modes can bring more usage scenarios to people, and the measurement process is also very convenient. UNIT CONVERSION & LARGER LCD SCREEN: These Digital Calipers have a one-key button to quickly switch from inches (inch), millimeters (mm) and fraction(F). The 6 digital caliper has a large, easy-to-read LCD DISPLAY which is easy to use and read even under strong sunlight. It will automatically turn off after 5 minutes of non-use to save power. Wide Applications and Lifetime Warranty: Compared to the ordinary rulers, this stainless steel caliper can measure not only length but also caliber and depth, allows you to measure circular and cylindrical objects, more functions and better performance will satisfy you. It has always been used by professionals and hobbyists alike, jewelers, hobbyists, woodworkers, machinists, DIY, automotive mechanics, and more. Range 6 Inches Brand Name UNIPEC Unit Count 1.0 Count Part Number UP-MT-125 Manufacturer Unipec Material Type Stainless Steel Included Components 1*caliper Number of Batteries 1 Nonstandard Battery batteries required. (included) Measurement Accuracy ±0.03 mm/0.001