
While it hasn't cost me to fully disassemble and inspect this unit, I've spent enough time adjusting everything and tighten possible installation screws - but almost every time I try to measure something it adds "5.07mm" to the total measurement. wrong measurement. And then I have to slowly clench my jaw to zero each time to weed out the biased readings (+5.07mm) that mysteriously appear. Let's go back to using my old analog instrument until I'm bored enough to take another look at what might be wrong. . Sometimes you get what you pay for. But it sure looks good!