PERFORMANCE TOOL- Dual Color LED USB Voltage Meter Black 13.46 x 7.49 x 2.03 cm W3002

For every individual who wants to determine the charging efficiency of the USB devices, this Voltage Meter is a must. Its dual-color LED easy-to-read display clearly shows amperage in red and voltage in blue. This device lets you check the output of mobile charger cables to ensure you have the best power transfer for your phones, tablets and USB devices.