Item Type: LCD Digital 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: <85%RH Application: Widely used in hospitals, woodworking furniture, building materials decoration, school teaching aids, student stationery, family DIY, machinery processing and other fields 1、MEASURING RANGE: This angle finder ruler measuring range is of 0‑200° and the angle measuring accuracy is plus or minus 0.5°. Length is 180mm or 7in. 2、LARGE LCD SCREEN: Designed with a full screen large LCD screen, digital angle finder protractor can be easily operated with only three buttons, easy to measure and read. 3、HIGH STRENGTH MATERIAL: The thickened and widened ruler body of this angle finder is made of high strength material, which has good stiffness. 4、EXQUISITE AND MODERN: The LCD digital angle finder protractor design is exquisite and the appearance is modern. 5、WEAR RESISTANCE: Angle finder protractor is with great wear resistance, no deformation, no rowing, light and durable.