Function: 1. The USB Type-C tester has overvoltage protection, overcurrent protection, undervoltage protection, low power protection and alarm system. The upgraded USB Type-C tester can detect safety hazards and protect the device from damage as much as possible. When the output data is suddenly turned off, the output and alarm will be automatically turned off. 2. Check the battery capacity, charging speed and quality of the phone's charging cable. It can also be used to display the maximum current of the wireless charger, test the capacity and power of the mobile power supply, and support the automatic data backup function after a power failure. 3. It has a high-definition color LCD screen, and the display mode can be switched by pressing the button. With new interface settings, it supports OTG function and monitors device data supported by USB or USB-C, such as voltage, current, capacity, power, power, l-load impedance, voltage D+/D-, etc. Package includes: 1 x USB Tester Type: