Bought these two LED voltmeters from different vendors at different times. Total cost was about ยฃ11. Both meters have 5 digits with 3 decimal places of accuracy. They cover an excellent voltage range 0-30v so my area of interest around 12 volts is slap bang in the middle. Very surprised with their correlation. Barely a digit of difference between them.

By Julian

Youtuber, shed dweller, solar charge controller aficionado

9 thoughts on “Led voltmeters with 3 decimal places are surprisingly well calibrated”
  1. Avataaar/Circle Created with python_avatars Ionut St. says:

    Anybody care to share with me a link or search method?

  2. Avataaar/Circle Created with python_avatars Tommy H says:

    I was about to order a few of these units for a diy bench psu. Is there a way to add an adjustment pot that you can easily get to?

  3. Avataaar/Circle Created with python_avatars Robin Cerny says:

    They may use an Internal precision Voltage reference ๐Ÿ˜‰

  4. Avataaar/Circle Created with python_avatars Alberto Morales says:

    Buen video

  5. Avataaar/Circle Created with python_avatars Blade Runner says:

    Sir, i've ordered different panel meters from China, i still waiting for them to be shipped.
    And yes, i am also surprised how precise are. China manufacturers produce more accurate instruments than ever.

  6. Avataaar/Circle Created with python_avatars N1QQ says:

    I admire your interest in electronics, and appreciate your willingness to share your experiments and their results. Thanks.

  7. Avataaar/Circle Created with python_avatars Julian Ilett says:

    I'm pretty sure I've seen 4 decimal place LED voltmeters on eBay recently, but they may have been 4DP up to 3 or 4 volts and 3DP beyond. May be useful if you're measuring low voltages.

  8. Avataaar/Circle Created with python_avatars Monideth Pen says:

    Hi – don't worry – I've found them. My eBay search mojo went walkabout for a while there… ๐Ÿ˜‰

  9. Avataaar/Circle Created with python_avatars Monideth Pen says:

    Hi, nice video. I can't seem to find these voltmeters on eBay. Would appreciate it if you could message me the link for them.

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