Thiết bị đo điện áp USB DC 5.1a 30V AMP

USB Digital Tester Current Voltage Monitor DC 5.1A 30V Amp Voltage Meter Test Speed of Chargers Cables Capacity of Power Banks Black USB meter is mainly used to detect USB charging current, voltage, discharge capacity, quantity of electric charge, power, timing and so on. Meanwhile multi-meter USB detector can be applied to the power capacity storage and over/low voltage-current protection. It allows you to find the charging problem of the USB cables, wall chargers, and car charges more easily. Features: USB Meter Tester is mainly used to detect USB charging current, voltage, discharge capacity, quantity of electric charge, power, timing and so on.  Can also be applied to the power capacity storage and over/low voltage-current protection. It allows you to find the charging problem of the USB cables, wall chargers, and car charges more easily. The multi-meter tester also supports QC 2.0/3.0 high voltage test, with the function of cutting off automatically when it's fully charged, to protect your valuable devices effectively. Crafted from high-grade LCD monitor with low power consumption feature, bright and clear enough to monitor the parameters on the screen.  Comes with three various display modes for your choosing.  Ideally be broadly applicable to test capacity and electric energy of power bank; test the maximum output current of the charger; and test charging speed and quality of data cable and charging cable. Portable, easy to carry and enables you to put it in your bag or your pocket whenever you go, along with the symmetrical and reversible connector for your simply operation. Specifications: Color: black Input/Output voltage: 3V- 30V Voltage Resolution: 0.01V Current test range: 0- 5.1A(precision  0.01A) Cumulative capacity range: 0-99999 mAh(precision 0.001Ah) Cumulative power range: 0-999999mWh(precision 0.001Wh) Power calculation range: 0-299.999W(precision 0.001W) Timing maximum time: 0-999hours 59min 59s(accuracy 1s) Accuracy: ±1% Line loss: 0.1Ω Item size: 67 * 24 * 14mm / 2.64 * 0.94 * 0.55in Item weight: 25g / 0.88oz Package weight: 30g / 1.06oz Package size: 120 * 100 * 40mm / 4.72 * 3.94 * 1.57in Package List:  1 * USB Security Tester #powermeter #usbsecuritytester #voltagepowermeter #ampvoltagetester #currentvoltagemonitor #usbsecuritytest #ampvoltagepowermeter #usbdigitalpowermeter #metertester #voltageandcurrentmonitorusbsecuritytester