Features: The BT138 battery tester offers quick and accurate battery level detection, ensuring prolonged device life by supporting various battery types. Featuring a lightweight and portable design with clear LCD display, this tester is crafted from ABS material to withstanding frequent use. For household users, electronics enthusiasts, professional repair technicians, and outdoor activity lovers who require reliable battery performances. Perfect for pre replacement battery check at homes, battery inspections during travel, and maintenance and testing of electronic devices. Enhances your battery management routine with this essential tool, to provide peacing of mind and efficiency in power usage. Specifications: Component:ABS Size:Approx.15x2x8cm/5.9x0.78x3.14inch Package Includes: 1pcs Battery Tester note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual coloring of the item. Thanks for your understandings.