Review on 📏 Enhanced Digital Painting Thickness Gauge - ALLOSUN EM2271 by Trevor French

I'm not quite sure about the expected tolerance, the instructions expressly state "The measurement accuracy is not guaranteed for coatings on steel". Hence my skepticism; I tested a 2013 BMW that had only been waxed 2 or 3 times and was only 1-2 mils thick. It's impossible for a car with undamaged paint and basecoat to have just 1 mil. I then checked the bag and the gauge read 2 mils. I've put two sheets together and it says 3 mil. I have accurate stocks at work and will do further testing but any device that says steel based measurements are inaccurate isn't good enough to tell the color on a non- Measure Tesla vehicle! I think the advantage is that it can see significant differences from one panel to another. I'll look for something more specific. 3 mil thick plastic, an aluminum sheet, a steel strap. As you can see in the attached images, the instrument measured 3 mil thick plastic as 3 mil with aluminum backing. He measured the same 1 mil piece of plastic with a steel pad. I'm not sure how anyone says they got "accurate" readings." As I said, this seems to work on an aluminum base, but not exactly on steel. Use for me. I'm completely open for suggestions from other users or the manufacturer. I don't see any size options and the manual doesn't give any guidance. The description definitely gave more than what was expected.