?Sustainable rapporteur? Stainless steel digital angle, laser-etched measurements provide a clear reading. The digital LCD display is easy to read and eliminates guesswork ?High precision? The accuracy of this angle finder is 0.3 degrees. Measuring range: 0-360, folded length: 8 inches / 200 mm, total length: 15 inches / 400 mm ?Keep data and reverse measurement value? You can save data during measurement by pressing HOLD/Rev.; The display can be reversed for easy reading by long pressing HOLD/Rev. press ?Combination of 2 functions? Combination of ruler and protractor You can measure lengths and angles for easy measuring ?Note? The stainless steel edge is sharp. Be careful when using it and keep it away from children Material: stainless steel + total length: 400mm + measuring range: 0 ~ 360 Resolution : 0.05 + Accuracy: 0.3 + Battery: 1 * CR2032 3V lithium battery (included) Package Contents: 1 * Digital Angle Finder + 1 * Manual ;user Great locking functionality: the tight/loose button works well and you can set it to the tightness that suits your use Zero button: simple and intuitive, using positive and negative angles Engraved measurement: Engraved measurement provides a lifetime clear reading