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  • 02/03/2021

    A very nice product. the color screen has great visibility and clarity. there is no instruction booklet but you can scan a QR code that came in the package to get the instructions. the product also has some nice features as settings brightness levels etc. I would recommend it. it took a month to arrive.

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  • 09/04/2021

    llego antes de lo pensado, muchas gracias por la gestión chicas

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  • 16/11/2021

    Very useful!

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  • 12/11/2021

    You can’t see current and voltage. This is a very nice diagnostic tool. Something like this is very useful.

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  • 03/03/2021

    funciona correctamente me llegó en 1 mes

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  • 03/02/2021

    good service fast shipping good quality thanks

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  • 07/03/2018

    Must have in each DIY persons toolbox. the device can show you voltage current total charge in mah and MWh. it can be used to verify if your charger and charger cable is good and supports gay charging. the device itself is built cleverly. it stands apart from many other testers because of its colour display. I bought UM24C which comes with Bluetooth connectivity. using this option you can watch all parameters on the laptop or your Android mobile. Device came in small tin case.

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  • 02/01/2018

    Supports Quickcharge 2.0 and 3.0 with voltages up to 24V and 3A current. Very clear LCD screen, the units has 2 buttons on top and 2 buttons on the bottom that are helpfully labeled in every screen. The display shows momentary voltage and current along with accumulated mAh and mWh. The unit has 10 data groups, Group 0 always resets the accumulated data to 0 when you re-connect the device while groups 1 - 9 remember the data. You can set a minimum trigger current below which the unit will stop counting data (for example if you monitor the charging of a powerbank it might still draw 0.02A even after it is full, if you want to stop counting at that point you can set the trigger current to -for example- 0.05A), a feature i have not seen before on similar devices. Another unique feature is the cable impedence test where you connect the unit (with a load) to a power source and take a measurement, then you unplug the device and connect it via a USB charging cable to take a second measurement, eventually giving you the resistance of the cable. The most prominent feature of this unit of course is the ability to show a Voltage & Current graph, sadly i find that a bit lacking as the screen only shows the last 12 seconds of data, it also resets the graph when you move to another screen. The graph feature seems much more useful in the available PC software that you can connect via bluetooth (UM24C version only), giving the all the functionality of the device in a Windows program along with the possibility of exporting the recorded data. Unfortunately i have not been able to test the connectivity yet since i lack a USB Bluetooth dongle. Overall a very useful USB charge monitor with a colorful screen as opposed to a difficult-to-read segmented LCD-Display.

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  • dany
    IT
    30/04/2018

    Bellissimo oggetto tecnologico fatto bene, che consente di musurare in modo preciso, e BENE visibile, dati di interesse.. esempio : Volt, mah, tempo, Ampere, temperatura di esercizio in centigradi e molto molto altro.. tutte funzioni che vengono svolte bene ed in modo semplice dal grande e generoso display a colori. Mi è piaciuto tanto la possibilità di cambiare angolazione ed aspetto al display.. Consiglio scaricare e leggere bene le istruzioni, per potere usare e sfruttare al meglio le tante funzioni! Arrivato nei tempi lunghi ma previsti.. bene impacchettato in una solida e bella confezione. Consigliato OK ;)

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  • 26/03/2018

    I have several usb meters, and this one is far better than all others. I really like 1 mA resolution. It really shines when you use mobile or desktop app. It is even more useful when you pair it with electronic load: http://bit.ly/2FRl45r

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