Review on High-Performance Protractor Neodymium V Groove Magnetic Resistant: Enhance Accuracy and Accuracy in Measuring Angles by Christopher Gulledge

I'm building an airplane and need everything to be accurate * *. This level does its job. It says the accuracy is up to 0.1 degrees, but the display shows a 0.05 step. I tested the out of the box calibration and it was off by 0.1 so I recalibrated it and now it works accurately. The digital readings agree very well with the horizontal bubble. The build quality is on par and the protective case seems to be good. It's easy to read and easy to tell which direction to go in order to complete the level. Instructions are clear and written in real English, not the pseudo-English gibberish that often accompanies cheap Chinese products. I have far more confidence in this level than my cheap angle finder and it offers more accuracy than my non-digital 24" carpenter's level.