Feature:1. [LCD Display] The USB tester features 2.0 inch high definition LCD screen, ensuring clear visibility of measured data. Simple display interface and independent function menu ensure user friendly operation.2. [Advanced Interfaces] Our USB voltage current power tester is equipped with 5P high current USB A and 24P all pin Type C input output interfaces, offering quicker and efficient charging testing.3. [High Accuracy] Boasting 0.00001 low resolution, the USB voltage current meter can real time monitor subtle fluctuations in voltage, current, and power during charging, ensuring accurate measurements.4. [Wide Compatibility] Supports automatic protocol detection and protocol deception, allowing you to play with fast charging like PD 2.0, PD 3.0, QC 2.0, QC 3.0, QC 4, for FCP, for SCP, for AFC, for PE, for DASH VOOC, for SuperVOOC.5. [Data Recording] Records 10 sets of charge and discharge energy data, and comes with built in battery capacity calculation formulas for quick capacity calculations based on recorded data.Specification:Item Type: USB TesterMaterial: PCBIndexRangeResolutionAccuracyMonitoring Voltage4~28V0.00001V(0.29+2)Monitoring Current0~7A0.00001A(0.5+2)Monitoring Power0~140W0.00001W(0.5+2)Load Equivalent Resistance0~9999.9Q0.0001(0.5+2)D+/D- Voltage0~3.3V0.001V(1.0%+2)Device Temperature1(1.2%+3)1F(1.2%+4)Capacity0~9999.99Ah0.00001Ah/Power Consumption0~9999.99Wh0.00001Wh/Cable Internal Resistance0~9999.9Q0.0001/Device Running Time99 days, 23:59 minutes, and 59 seconds1 second/Record Time99 days, 23:59 minutes, and 59 seconds1 second/.Package List:1 x USB Tester