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Review on MCIGICM Digital Voltage Tester, Mini DC Voltmeter 2.5V-30V with 0.28 inch LED Display (Pack of 5) by Eric Ramen

Revainrating 5 out of 5

Beautiful, simple little voltmeter

These things are great for casting where you need to control the tension. Two-wire ones aren't as accurate, but easy to hook up without a separate power supply. Mine were all a few tenths of a volt but easily matched to my voltmeter. The adjusting screw is VERY sensitive, so you will need to turn it a little to set it properly. For me 13.5 vs 13.6 doesn't matter. If you need higher accuracy, this is not for you.

Pros
  • Detection voltage: 2.4-30 VDC.
Cons
  • Hard to say