Review on Portable Thickness Measuring Device - Hymnorq, Millimeter Accuracy by Zach Sornsin

I've compared it to other calipers (both electronic and manual) and found the results to be the same. Unlike the numismatist who left the review, my requirements are not that precise. If my calipers are bad, it doesn't matter. I mainly use it for woodworking projects and find it accurate enough for my needs. Recommended. Works well. When I compared it to a very accurate set of calipers I was using, I found that the error was less than a fraction of a millimeter. Definitely low enough to not matter in my case. If I had only used manual calipers I would not have seen this difference at all.