Description: Material: Made from pp material, this 12v car battery tester is designed to withstand regular use while maintaining its lightweight and portable nature, making it suitable for both professional mechanics and DIY enthusiasts Product Size: With dimensions of 12cmx7cm, this digital battery tester is easy to store in your tool box, ensuring you have it on hand whenever you need to check your vehicle's battery Simple to Use: Battery load tester features stable performance, compact size, easy to carry, high sensitivity, fast response, quick and easy to use Feature: Automotive battery analyzer is equipped with a clear LED display, which makes it convenient for you to read the measured value in dark vision Multifunction: Digital battery analysis has a alarm and overvoltage protection functions. The red clip is connected to the positive pole and the black clip to the negative pole Specification: Material: PP Size Chart: 12cmx7cm/4.72inchx2.76inch Package Includes: 1 Piece Car Battery Tester Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.