Function: 1. The black ruler body and white scale make the reading clearer and easier to operate. 2. The enlarged and thickened knobs are easy to tighten, making the measurement convenient and reliable. 3. The degree of display and degree points of the digital ruler can be freely switched. 4. Any position can be cleared, which is convenient for absolute and relative measurement. 5. Data can be stored in any position that is convenient for reading after measurement. 6. A wide range of applications, such as woodworking furniture, building materials decoration, schools, home DIY, mechanical processing and other fields. Specification: Item Type: Digital Ruler Material: ABS Power: 3V Measuring range: 0 - 360° Resolution: 0.05°/3' Repeatability: 0.5° Working temperature: 0 - 40C° Working Humidity: ≤85% Storage temperature: -20 - 60C° Auto screen off time: 6 minutes Battery type: button battery Battery model: CR2032 Battery capacity: 2000mA Package List: 1 x digital ruler (200mm)