Usage Tips:Features: Magnetically adsorbed on the measuring surface, can be attached to the workpiece being measured Relative measurement and absolute measurement conversion Angle and slope conversion Data lock, easy to read Specifications: Measuring range: 4*90° Display resolution: 0.05°0.05° (Less than 100°), 0.1° (100°-180°) Accuracy: ±0.1° 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 3. Processing: Precise positioning of machine tool working angles, rotation angle of large arms 1. Easy to carry. 2. Fast response speed of measurement value 3. Backlit LCD display. 4. 2 AAA dry batteries (batteries not included) 5. 4*90° measurement range 6. Reading value: 0.1°, measurement accuracy: 0.2° 7. Multi-purpose measuring tool, protractor, inclinometer and level ruler in one 8. There is a magnet at the bottom, which can be attached to the object to be measured. Colour:black Material:Plastic Package Contents: 1 * 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.