HANMATEK Digital Angle Finder Protractor with Zeroing and Locking Function, 7-Inch Stainless Steel Angle Finder Ruler, Digital LCD Display, for Woodworking, Construction, Repairing DP2 (blue)

This is not 100% accurate

The angle measurements are not accurate. If you zero it, then move it (slowly) to 45-90 degrees, then go back to zero it will read about 0.5 degrees and it just gets worse the more you repeat the motion.If you're only measuring to +- 1 degree, it's ok, but it's useless for anything you need more accurate.

I love it. It makes things much easier for me. Although, the accuracy is not really that good. When you calibrate it "zeroing it" before making the measurement, when you fold it back, instead of reading zero, you now getting .5 - .7 degree difference and if you keep doing the same thing couple times you will see the accuracy is way out of expectation. It could be as much as 1-2 degrees. I don't need to have the small precision accuracy, however, it does bother me that I have to redo the calibration every single time I make a measurement. That's said, digital reading is still heck of a better way to measure the angle than the manual tools.

Easy to use and accurate. Not a super solid build but it also wasn't expensive. Works well.

angle finder is ok. they hard to open. the lock is not easy to turn. overall the feel is not good

I have lots of odd angled walls in my 170 year old home, so this was a great tool

Accuracy is not good.

Great measuring tool, unable to tell how accurate but good enough