Click on Image 4 HD Quality. Email me for questions as my store can be confusing with all of the options, Lux Signifer $3200

Keweisi USB Voltage Amp Meter

Plug to any USB port to monitor:

- Charge current

- Charge voltage 

- Charge time elapse 

- mAh charged 

A great tool to check all yours USB charging devices. I threw out a bunch of low quality cable with low charge rates. 

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