USB Voltmeter Ammeter + USB C to USB A 3.0 Adapter
$5
This USB voltmeter/ammeter can measure between 4.5 V-10.V and from 0 A-3 A, and it displays up to two decimal places, or one hundredth of a number. It doesn’t have a separate display for volts and amps; rather the display alternates between volts and amps after a few seconds. It also comes with a free USB C to USB A adapter which doesn’t seem to work.
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