This is a mini USB meter measuring voltage, current, power and capacity
It conveniently measures USB port current and output voltage and judges the performance of charging devices
Suitable for factory, laboratory and personal use, easy to use. No power supply required, just plug and play
Specifications:
Model: KWS-V20
material: plastic
Voltage: 3-9V
Current: 0-3A
Accuracy: +/- 1%
Time: 0-99 hours
Size: 59*23*13.5mm