【User Friendly Design】With data hold, backlight, low battery indicator, automatic shutdown without operation after 15 minutes,maximum and minimum functions, and angle and slope readout conversion. What’s more, you can change your battery with one simple push, no screwdriver needed and no need to worry about losing the screw anymore!<br>【Buy with Confidence】Package included: 1*856 angle finder,1*manual,2*AAAbattery. We are engaged to bring quality products to more families and your choice and recognition will always be our greatest support.What’s more,you are supported by 7*24 online friendly customer service. So don’t hesitate, first come first serve.<br>【4-Sided Strong Magnetic Upgraded】This Digital Level Box comes with Not only the baseboard, but also the stronger magnetic upgrade at the four sides for more convenient operation. Never slide on the table saw blade or any metal surface. A great helper in woodworking, construction, machinery, telecommunications, automobile etc.<br>【Professional Digital Angle Gauge】This angle gauge is designed with accuracy of ± 0.2° and the resolution is 0.05°. The measuring range: 0 to 360° (4*90°). And two measuring modes available for checking the true level, and the relative angle between two surfaces.<br>【Larger Backlit LCD Display】This digital protractorfeatures with a larger LCD backlight display, which enable you to see the data more clearly even in darkness. Tells ERROR in an incorrect position (e.g. tilts diagonally over 30 degree), to make sure getting the accurate measurement.