SMAKN® OLED USB detector voltmeter current power capacity tester-BLUE
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<b>[Product Information]</b><br>
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<li>This is the mini USB meter. It can measure voltage, current, power and capacity.</li>
<li>It adopts the OLED screen, it can clearly display all the data. And it display two colors font, white and blue.</li>
<li>It has three functions:Screen rotation,Power-down storage andOver-voltage and Under-voltage reminding.</li>
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