DROK® Double USB output Display Charge Detector Voltmeter Gauges Ammeter 0-3A DC 3.2-10V Red / Blue LED Digital

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  • USB current and supply voltage  

    DROK® Double USB output Display Charge Detector Voltmeter Gauges Ammeter 0-3A DC 3.2-10V Red / Blue LED Digital (Electronics)
    accurate and reliable displays U and I on USB power supply. no complaints. tested voltage regulator with a solar panel and smartphone charger.
  • Very good build quality, and very precise operation  

    DROK® Double USB output Display Charge Detector Voltmeter Gauges Ammeter 0-3A DC 3.2-10V Red / Blue LED Digital (Electronics)
    The display of the voltage and current of the USB are really accurate, the product is not at all "gadget". A delight to use!
  • A possessing 11  

    DROK® Double USB output Display Charge Detector Voltmeter Gauges Ammeter 0-3A DC 3.2-10V Red / Blue LED Digital (Electronics)
    Who has not ranted against a USB drive that disconnects regularly and whose SMART parameters are OK? This small, simple, effective and cheap housing can easily tell you the problem: I have enough power? A little Geek quickly but indispensable.