The electronic digital caliper is widely used for gemstone measurement and precision measurement of small workpieces. The stainless steel caliper features a high-precision chip designed for accurate and fast measurements. Made from premium stainless steel, this caliper is durable and long-lasting. Powered by a 1.5V battery, it ensures reliable operation and is easy to replace when needed. The caliper is lightweight, making it portable and easy to use in various settings. Specifications: Material: Stainless Steel Color: Black Measuring Range: 0-25 mm Reading Value: 0.01 mm Accuracy: 0.03 mm Battery: 1.5V (included) Usage: Measures inner diameter, outer diameter, and thickness of objects such as rings, pearls, jewelry, and gems. Features: 1. Easy zero reset function 2. Auto power on/off for energy efficiency 3. Switchable between metric and imperial units 4. LCD display with clear and easy-to-read digits Package Contents: 1 x Electronic Digital Caliper Note: Light reflection and display differences may cause slight variations in color between the image and the actual item. Measurement error allowance is 1-3mm.