3 in 1 Digital Multi-function USB Tester USB Multimeter for Mobile Phone Power Voltage Current Capacity detecting and USB Charger Testing
Input USB: RTZ, Reset button, press it three seconds will reset
Voltage: 4V-20V ( 1% accuracy )
Current: 0-3A ( accuracy of 0.4% )
Battery Capacity (0-99999mah)
Working time (0-99Hour)
The working time and capacity have memory function when power off.
1 x 3 in 1 USB Charger Tester
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