Rainyb digital angle finder tools will bring reliability and convenience to your work. Widely used in woodworking furniture, building materials decoration, schools, home DIY, mechanical processing and other fields. 1. 360 Degreeinternal and external angle measurement, you can keep the data at any position to facilitate the reading after measurement. 2. Great Locking Feature The tightloose knob works well and you can set the Angle Finder to the tightness that suits your use. 3.The full screen super large LCD displays the measurement data, and the reading is simple and convenient. 4.Fine textured engineering materials, lightweight, wear resistant, non deformed, non scratch. Feature: 1. Four in one multi function digital protractor: A: Measuring angle 0 360 Degree; B: Engraved line length: 190 mm7 inches; C: Horizontal and vertical measurement; D: Plane universal measurement; 2. Enlarged and thickened knobs, easy to tighten, convenient and reliable measurement. 3. Display unit: arbitrary conversion between degrees and minutes. 4. Any position can be cleared, which is convenient for absolute and relative measurement. 5. With automatic power off function, save power consumption and extend battery life. 6. The flat back of the ruler body is convenient for marking and measuring. Specification: Working Temperature: 0 Degree C to +50 Degree C Working Humidity: ≤85percentRH Working Current: ≤20μA Measuring range:0 360 Degree High resolution: 0.05 Degree Accuracy: + 0.5 Degree Battery: CR2032 3V lithium battery power supply, super battery life Product weight: 108g Product dimensions: 230 x 35 x 25mm