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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.
  • nice display

    posted by prOOwner89

    I like this thing a lot, i had another one in red without the frame and it didn't look as good as this one, the blue color is nice and even, no dark sports, and seems fairly correct to me. The black surrounding around the display is made of the same material as most dashboards so could be integrated very wel in a dashboard without noticing. The display has a matte cover over it to enhance visibility in the sun or bright daylight.
    none
    This is the way to go is you want a nicely finished display with a case to match so you can build it in in something
  • 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.
  • Digital Voltmeter Meter Module

    posted by jk87

    Very handy thing for DIY projects. Small mounting dimensions. Nice (blue) backlight. Quality workmanship. A very useful addition when you need to measure the voltage of one cell. I use to check discharge of an article in its grip e-cigarettes.
    Nothing I could find. Maybe if he had a greater range, but there are other modules.
    Ideal for ecig grips, or wherever you need to measure voltage of a Li-Ion cells. Plans to use a portable power source.
  • 5-Digit LED Precision Meter & Display Combo

    posted by RAndris

    Ready to go meter. This tiny meter is awesome, red LED display is highly visible, response time is fast. Good measurement averaging and average pulse immunity. No separate power supply needed if measuring voltages > 3.5V and source allow to supply from it.
    I am using this meter to check and monitor power supplies instead of carrying multimeter around.
    Compared full range voltage readings with 5-Digit multimeter - precision is perfect for price.

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