Battery-Powered With Auto-Off: Powered by 1.5V LR44 button cell batteries, this digital caliper features an auto-off function to conserve power when not in use. 4 Measuring Options: Measure inner diameter, outer diameter, depth, and step dimensions, suitable for a variety of applications. Compact Carry Design: Lightweight and compact, this caliper is easy to carry in a pocket or toolbox. High-Precision Measurement: Provides accurate measurements with a resolution of 0.01mm, ideal for professionals requiring precise results. Stainless Steel Construction: Made from stainless steel for durability and resistance to everyday wear. Featuring a high-precision design, this digital caliper offers reliable 0.01mm resolution. The stainless steel body enhances longevity, and the battery-powered operation includes an auto-off feature for energy efficiency. A large LCD screen ensures clear visibility, and the four measurement functions provide versatility across multiple tasks. Its compact size makes it convenient for on-the-go professionals.