Features MEASURING RANGE: The measuring range of this angle search ruler is 0-200° and the angle measuring accuracy is plus or minus 0.5°. The length is 180 mm or 7 inches. LARGE LCD SCREEN: The digital protractor is equipped with a large full-screen LCD screen and is easy to operate with just three buttons, easy to measure and read. HIGH-STRENGTH MATERIAL: The thickened and widened ruler body of this angle finder is made of high-strength material, which has good rigidity. EXQUISITE AND MODERN: The design of the digital LCD protractor is exquisite and the appearance is modern. WEAR RESISTANCE: The protractor is very wear-resistant, does not deform, is light and durable. Specification: Item Type: Digital LCD Angle Finder Ruler Material: ABS Color: Black Measuring range: 0-200° Battery: 3V CR2032 x 1 (shipping without battery) Resolution: 0.05° or 3' Accuracy: 0.5° Operating temperature: 0℃-50℃ Operating humidity: Package List 1 x Mini LCD Digital Angle Finder 1 x Manual