It is magnetically adsorbed on the measuring and can be attached to the workpiece being measured. Relative measurement and absolute measurement conversion. Angle and slope conversion. Data lock for easy reading. Portable size, easy to use with other measuring tools to expand the measuring range. Measuring range: 4x90°2x180° Display resolution: 0.05°0.05° (Less than 100°), 0.1° (100°-180°) Accuracy: ±0.2° Repeatability: 0.1° Working temperature: 0°C-40°C Applications: 1.Wood processing: Precision cutting of wood angles 2.Auto repair industry: Precise control of tire assembly angles Processing: Precise positioning of machine tool working angles, rotation angle of large arms Easy to carry. Measurement value response speed is fast Backlit LCD display. 2xAAA dry batteries (product shipped without batteries) 4x90° measuring range Reading value: 0.1°, Measurement accuracy: 0.2° Multi-purpose measuring tool, protractor, inclinometer and level three-in-one There is a magnet at the bottom, which can be adsorbed on the object to be measured. Colour:Green Material:ABS Package Contents: 1set x digital protractor inclinometer Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.