【Wide Application】Widely used in house decoration, building construction, automobile testing and repair, road and bridge slope detection, etc. The protractor is portable and convenient, whether you are a beginner, construction worker, decoration designer, maintenance worker, craftsman or other professionals, angle gauge is a great helper and choice for angle measurement and adjustment.<br>【High-visibility Reversible Display, Easier to Read】Specially designed with high visibility auto-rotating display, which has higher definition digitals. No worrying about hard viewing even with poor eyesight or using in dark areas.<br>【Versatility - 4 Units of Measurement】Compared to others, our digital angle finder magnetic provides 4 display units, can switch freely from degree(°)，percentage(%), mm/m, in/ft. Besides, with data storage function, "Erro" indicator function, "Zero" switches relative angle etc. Multi practical functions of this angle gauge allow users to be more efficient and make their job easier.<br>【Great Accuracy and Consistency】Angle gauge provide an accuracy of ±0.1° and resolution of 0.05°. It works well in measuring or setting angles, checking relative angles, measuring bevel angle of miter saw, automobile test and repair, or used as a digital level.<br>【Upgraded Angle Gauge with Horizontal Bubble】The digital angle finder with a V-groove magnetic base instead of a flat base, which can be more stably fixed on round pipes and other metal surfaces. And it increases a bubble vial, which can be used to determine the level when there is no battery.