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View More This USB Charging Current / Voltage Detector Mobile Power Tester - Ocean Blue 3 is very good. works really fine.

I can measure in what voltage my device is charging and on what current.

This gadget is very useful to check your power supplies or cables. Really satisfied and recommend to others.

#USB Charging Current / Voltage Detector Mobile Power Tester# View Less

USB Charging Current / Voltage Detector Mobile Power Tester

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