Features MULTI FUNCTIONAL DESIGN: This current and voltage tester supports Type C interface, allowing users to conveniently monitor the charging status and quality of their devices. COLORFUL DISPLAY: Equipped with a colorful screen,the power tester provides a clear display of current, voltage, and other data, enabling users to intuitively understand the performance of their devices. BIDIRECTIONAL TESTING: USB tester can simultaneously measure the input and output current and voltage of devices, meeting users' comprehensive data measurement requirements. PORTABLE AND COMPACT: With its compact design, this current and voltage tester is lightweight and easy to carry, making it convenient for on the go use or in various settings. WIDE COMPATIBILITY: This tester is compatible with a wide range of devices that support Type C interface, including smartphones, tablets, laptops, power banks, and more, ensuring broad application possibilities. Spec: Item Type: USB Tester Material: ABS Voltage: DC4-30V Current: 0-6.5A Timing: 0-99 hours Mah: 0-999999mAh Temperature: -9-99℃ Display Screen: TFT packing list: 1 x Tester 1 x Manual Package List 1 x Tester 1 x Manual