DX » Community » Reviews » 3.3" LED 4-Digit Red Display 3.5~7V 0~3A USB Power Charger Current Voltage Tester - Blue + Silver
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  • posted byairgunnut on 03/10/2017

    Impression:Useful;

    Useful to test if it's the charger or the cable that's at fault.

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  • posted bybbaaddyy on 10/18/2016

    Impression:Quite good;

    This tool works as expected, switches between Voltage and Current automatically.

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  • posted byajtank on 08/25/2016

    Impression:Quite good;

    Compact tool to measure USB output voltage and current. Results are fairly accurate. Price is also attractive. Recommended to all hobbyists.

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  • posted bygabosieiro on 08/05/2016

    Impression:good;

    Maybe its just me, but i always get about half the amperage i sholud get. I know the charger and cable are delivering 2A because of charging times, but tester indicates only 1A.

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  • posted byjoelrengifo on 05/20/2016

    Impression:excellent;

    muy buen producto para su bajo coste, es muy bueno para efectuar mediciones de los aparatos conectado por puerto usb, indicandome el amperaje y el voltaje que circula por la pieza que se desea medir, esto tambien ayuda a proteger los puertos usb de la PC ya que los que vienen incorporados solo y... Read more

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  • posted byeinsteinecker on 05/15/2016

    Impression:excellent;

    Pros: I had problems at times with charging my smartphones and other devices, wondering why some take a long time and others don't. Using this, I was able to see why the slow charging devices were slow charging, and it really helped so much. Cons: The L shape of this product may not play nice USB... Read more

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  • posted byJosh101 on 04/27/2016

    Impression:excellent;

    I got this because i have been really interested in usb devices and now that they are so popular 5 volt devices are becoming a standard. This device couldn't be easier to use, just plug it in and it displays voltage and current. The display slowly cycles through both readings. This unit also has... Read more

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  • posted by9989230 on 03/25/2016

    Impression:Good stuff for reading amps in cellphone chargers;

    zobrazuje napětí a proud po 5 vteřinových intervalech. Dobrá věc pro posouzení funkce nabíjení různých zařízení.

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  • posted byaldarson on 02/26/2016

    Impression:Quite good,Good stuff for reading amps in cellphone chargers,nice leds;

    Easy of use and works great. Switch before voltage and current in cca 3 sec intervals. Big light digits.

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  • posted by9251387 on 02/13/2016

    Impression:Useful;

    Pros: very useful to check if a power charger device or an USB connecting cable is working correctly. Cons: none.

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