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• Features: This is the mini USB meter It can obviously demonstrate all the data Can easily measure the USB ( PC USB, cellphone charger, vehicle charger , mobile energy , and many others ) port and machine working current and the output voltage charge-discharge capacity, performance, and choose the functionality of the charging cable charging equipment, this tester can meet the necessities ! Fit to factories, laboratories and private use, wide range and Easy to use, easy to take alone, no further power supply, Plug and play Description: DIY Supplies: Electric Display Type: Digital Only Code Accuracy class: Plus or minus 1% Operating temperature: normal Power Supply: AC Voltage: 4-20V+/-1% Current: 0-3A+/-1% Time: 0-99H Specifications: Model: KWS-V20 Material: Plastic Color: Blue Size: 59*23*13 1 IN - Connect the input terminal to the output port of the charger 2 Press the RTZ reset button for three seconds before the display displays reset three OUT - USB port for connecting the output end to the data cable 4 Input voltage display window (3-9V) accuracy ± 1% five Charging current reveal window (0-3A) accuracy ± 1% 6 Battery means show window (0-99999mAh) 7 Working time display window (0-99H) Unit: minutes 8 Working time and capability reveal with memory operate after strength outage

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