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dc voltmeter Customers Reviews

  • very good buy

    posted by sorin69

    Cheap. It does what is suppose to do. It comes packed in a bag without any manual. The brightness is just right and filter in top gives it a nice tint. Very easy to modify to cover the whole range from 0 to 30V and that makes it a nice voltmeter for a home made power supply.
    Does anyone have a schematic? It will as well be nice to get it in green or yellow.
    Very good buy at a very cheap price!
  • Documentation??? Shunt??? 50A???

    posted by sale030

    Nice design, good price, small and usefull for different projects, good combination of colours, very atractiv.
    Very usable for DIY projects, so as all other products from this web site.
    Will be nice to publicate documentation for that so as for all other products from DX. Otherwise, I love DX.
  • DIY

    posted by baco10040

    Voltmeter and Ammeter are very good calibrated. I tested it with my multimeter and it was fine 0.1 accuracy. Scheme is not correct. For real accuracy connector with a black and red wire must be connected to another power supply 0-30VDC. I use battery Ni-Cd 10000mAh. It is not possible to use it on same power supply when messuring volts and ammps
    Nothing special. Overell a very good product. Good visibility on display. Package came in one piece.
    Very quick delivery time.
  • Very good and useful Vmeter

    posted by jacktor

    Good quality for a great price. Exactly what I needed. It works well, accuracy is what it can expect from this vmetre, about + - 0.05 V. Due to one decimal figure is rather to indicate voltage. Who needs for this purpose, it is exactly right.
    Nothing.
    It is applicable to a lot of connections that do not need high accuracy. I personally am very satisfied and I am really happy about it. Exactly fulfilled my expectations and for the price, or perhaps not possible to have something better.
  • The voltmeter (very precise)

    posted by szili83

    The "V20D 0.56" LED Two Line 3-Digital Direct-Current Voltmeter Meter Module - White + Green (DC 2.5~30V)" device is good. I attached some photo, and one video. The measurement is precise. It may the precision of the voltmeter to calibrate with the potmeter (bottom side). I calibrated it. The product is very cheap. It luminous intensity of the voltmeter is very strong. The color of display is reed.
    The device is very cheap, good, and exact.
    Cheap, and good device.

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