UPGRADED MULTIFUNCTIONAL USB C POWER METER: This new type USB tester is designed to detect the charging status and process of your USB-enabled or type c-enabled devices. Supports Qualcomm QC3.0, QC2.0 and BC1.2. It can be used to test the max output current of USB charger; test capacity and electric energy of power bank; test charging speed and quality of USB cable. PROFESSIONAL SAFETY GUARD: Featured with over-voltage protection, over-current protection, under-voltage protection, low energy protection and alarm system. This upgraded USB Type C tester can detect safety and maximally protect the appliances from damaging. It will cut off output automatically and alarm by sound, while it will save data when power off suddenly. MULTIPLE COLOR SCREEN DISPLAY MODES: New upgraded version offers 8 LCD main color screen display interfaces, allowing switching the display interface by pressing the key. With the new interface settings, this instrument can monitor voltage, current, capacity, electric quantity, power, load impedance, D+/D- voltage and other data of USB. (Please kindly note that the backlight time can't be reset on this new version tester. ) WIDE RANGE OF APPLICATION: Thanks to the PD protocol quick charging mode measurement technology, this new multimeter supports the updated iPhone X mobile phone. (Support iphone 8 / 8P / iPhone Xs quick charging, 29W power, 5V3A / 9V3A / 12V2.5A / 15V2A). It also can be applied to test other type C devices, such as Samsung Galaxy S9 Plus, Google ChromeBookPixel, OnePlus, HuaWei P9, ect. EVERSAME PROMISE: We have always believed that a stable and continuously improve product quality, customer satisfaction is the basic functions. We trust our products and we offer 18-month Breakage Warranty in case of defective product. For any reason you are unsatisfied with our product at any time, just feel free to contact support for exchange or refund. WHAT WE PROVIDE: 1X USB Type C Tester.