Monitors multiple parameters with our USB Voltages Current Power Tester, featuring real time display of voltages, current, power, and charging capacity, ensuring you have completely insight into your charging . QC2.0 fast charging , this tester is compatible for wide ranges of quick charging devices, enhancing your charging speed efficiently. Ideal for enthusiasts and everyday users, this device automatically identifies connecting equipment and adjusts output for charging . Perfect for travel, daily commutes, or home use, its compactly and lightweight designs allows easy portability, enabling you to monitors charging conditions. Builts with durability ABS, it high resistance to wear and impacts, ensuring long terms use while providing like overcurrent, overvoltage, and short circuits protections.