RD AT35 5 Digits USB3.0 Port 3.7-30V 0-4A Range Color LCD Display Voltmeter Ammeter Voltage Current Meter Tester Multimeter Power Bank USB Charger Tester(AT35)

1.AT35 is a USB tester to test the voltage and current of a USB-A port, the test range is 3.700-30.000V(voltage), 0-4.0000A(current)
2. AT35 adopts 0.96 inch IPS LCD display with 160 degree wide view angle, you can see the data clearly in differnet angle
3. AT35 can recognize these charging protocols on the screen: QC2.0, QC3.0, APPLE 2.4A/2.1A/ 1A/0.5A, Android DCP, SAMSUNG
4.together with a USB electric load, you can test the capacity of a power bank by discharging it from 100% energy to 0, the use formula to caculate the capacity of the power bank
5.you can test the quality of the charger in this way: connect the same load, compare the no-load and with load, the greater the voltage drop, the worse the charger capacity , the worse the quality; if the voltage drop is not obvious or the voltage rises, The better the load capacity of this charger, the better the quality.

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