Most lights are built to order and are NOT READY TO SHIP. Email for questions, recommendations, & wait time . Click on pics for high resolution ;-)

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. 

FREE Shipping  with any light order 

Continue Shopping or Checkout