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USB Tester Voltage and Current Tester 5.1A 30V Voltmeter Meter Current Meter Digital USB Multimeter Tester PD Multi-function Display Capacity Voltage Current DetectorParameters:Voltage: DC4-30VCurrent: 0-5.1ACapacity Range: 0-99999mAhElectric Energy Range: 0-999999mWhTime Range: 0-99hPower Range: 0-150WResistance Measuring Range: 0-999.9ΩGrouping: 1-9 groupInternal Temperature: 0-80℃D Positive Voltage: 0-10VD Negative Voltage: 0-10VFast Charge Recognition Mode: QC2.0, QC3.0Tips:The working current of the USB flash drive is between 50-100MA. When it exceeds 100MA, it may malfunction. It is recommended to back up the file and detect the USB.The external voltage of the USB interface on the computer is 5V±5%, the output current is generally 500MA, and the notebook is only 100MA. It is recommended not to charge the high-current power (more than 500MA) on the USB interface of the computer to protect the USB interface of the computer and the life of the motherboard.Package Including1 * USB Multifunctional Tester