Review on 📐 Enhanced Digital Magnetic Protractor by IGaging 35 2269 by Mike Bucher

I really wanted to like this angle sensor but it just isn't accurate or consistent. Also, the viewing angle is pretty narrow compared to the other corner unit I have. In my garage, which has about 35 degrees in the winter (as of the writing of this review), I've had readings in excess of 0.25 degrees and very inconsistent readings. When I brought it home this morning and checked again, I got more stable readings but still 0.2 degrees off. I tested it on 3 different courts which I scored perfectly. This block gave me different readings on each of my 90 degree and 45 degree squares. I have an AccuMASTER angle block and it reads 90 and 45 degrees on the nose every time, regardless of the ambient temperature. I also checked the angles of my squares with an accurate (manual) protractor and checked my readings with another digital level I have. You can recalibrate it, but it requires a calibrated flat surface that's within 0.02 and perfectly flat, which the average Joe doesn't have. If you still don't trust my testing methods or tools, I zeroed this on my flat cast iron table saw and flipped it on its side in the same place I zeroed it. One side measured 90 and the other side measured 89.75, so it differs by 0.25 when measuring itself. I have the same reading indoors on a granite countertop. Gentleman who complains, if you tilt it or rotate it after zeroing, the reading won't read properly. ALL of these types of equipment will do this unless your table is absolutely level. You measure your table at this point. The same with a slight angular deviation.