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digital voltmeter module

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digital voltmeter module Customers Reviews

  • 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.
  • Good compact volt meter

    posted by mastertim

    it is lightweight and small.I think its accurate but i didn't test it actually.bright screen you can see it well.i think you can use this for much purposes and it can be used for a lot of voltages.
    you can put this on your motorcycle, car, and a lot of other stuff. You dont have to be a real DIY for this, its easy to wire it up and it will work immediately.
    easy product for much purposes you should buy it.
  • Excellent low cost precision voltmeter

    posted by TrinityTrip

    Nice and compact. Excellent precision. Simple to use; Hook up Red to plus and black to ground and measure with white and black.
    None so far... perhaps an option to buy accesories such as a masking plate and mounting hardware.
    Excellent choice for home projects, diy power supplies, replacment modules etc.
  • Great value and performance

    posted by pfroozendaal

    Exceeds specs of voltage range a little bit (2,6 - 35 V). Nice small and at least as accurate as my hobby DVM.
    Maybe buy the version with the black plastic holder for easier mounting?
    Years ago I build a meter like this from discrete components, costing me at least $100,-. This one is better and I can hardly understand the low price! With my next DX order I will also try the Amps and the VAC meters. Can't wait.
  • Great Voltmeter!

    posted by michalwu

    Small boardVery good solder -high quality surface mounted, I was amazed really!Useful range (4.5 - 30V is more than I will ever use)No additional power source needed.Low power consumption.There is a trimpot, and you can calibrate it when needed.PCB is very small, but you have two mounting holes on edges!
    You can use it in in many many DIY projects, will fit anywhere!I am going to fix it to home emergency power supply unit.
    I recommend buying this Voltmeter.Will work as expected.

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