Fast Charging Testing & Power-off Storage: This PD3.1 USB C tester supports fast charging tests such as PD2.0, PD3.0, PPS, QC2.0, QC3.0, FCP, SCP, AFC, PE, DASH, VOOC, SuperVOOC, etc. It can detect the voltage and current of fast-charging devices and display them on the screen. Similarly, we also support a Power-off storage function that stores capacity and energy data when the mobile power is turned off, which is convenient for subsequent viewing and testing. Gravity Sensing Automatic Rotating Screen: This USB C power meter features a 0.78x 0.78 inch ISP color+ black and white high-definition display, with high resolution and clarity. The interface can rotate 360 ° and supports a lock screen design, which can fix the screen orientation for accurate data recording. It can display voltage, current, power, capacity, energy, time, maximum voltage, maximum current, maximum power, current direction, and CPU temperature. All C Port Inputs & Outputs: Our tester uses Type-C as the input and output ports. Please believe that this will ultimately be the inevitable trend of future electronic charging devices! This C-type tester has a maximum current terminal of 12A to improve stability. Measurement current: 0-12A; Measurement voltage: 4V-30V, measurement power: 0-600W. Suitable for the vast majority of electronic charging devices. Equipped with a bidirectional current testing function, providing you with an intuitive charging speed experience. Automatic Screen Shutdown with Zero Power Consumption Design: The power consumption of this meter is less than 0.15W. When there is no current, the screen will automatically shut down, extending its service life while also consuming zero power, which is energy-saving and environmentally friendly. ESP32 Series Two or one CPU core(s) with adjustable clock frequency, ranging from 80 MHz to 240 MHzPeripherals inc