Feeler Gauges, Vernier Calipers -Digital Protractor Highlights Generic Brand Digital Protractor Description: With 2 magnets embedded in the measuring surface, which is convenient to be attached to the workpiece. measurement of the object. Auto power off in 5 minutes. Lightweight and durable. Portable size, convenient to work with other measuring tools and expand the measuring range. Relative/absolute measurement exchange at any position. Wider application is in the wood processing industry (particularly in the furniture manufacturing industry) for precise angle cutting of wood; auto repair industry to tire precise control assembly angle; in the machining industry for precise positioning of machine tool working angle, and vehicle large arm rotation angle etc. Specification: Size: 57x57x30.5mm / 2.24x2.24x1.2 inch Measurement Range: 360 Degree Resolution: 0.05 degree Accuracy: 0.2 degree Repeatability: 0.1 degree Battery: 2 x AAA 9V batteries (not included) Temperature operating range: 0-40 Degrees Absolute zero measurement based on horizontal surface Net weight: 0.21kgs How to use: 1. Press the ""ON/OFF"" button, it lights up and the LCD displays a absolute horizontal angle. Press the "ON/OFF" button again, it turns off. 2. The measurement initially shows 0.0 on the LCD at the beginning, when it shows ""on the left side"""" on the right side, it means the left side is higher and the right side is lower, when it displays "" ""on the left side"" ""on the right side, it means the left side is lower and the right side is higher. 3. Place the instrument on the horizontal stand and press the ""ZERO" button, the value returns to zero, and the reading is the value of the angle measured with respect to the horizontal stand. 4. Press the "HOLD" button, the value on the screen will be locked. 5. The magnets at the bottom allow the instrument to be fixed on an iron measuring object. Press the ""ZERO"" button; reset the value to proceed with the relative measurement. Package includes: 1x Inclinometer 1x User Manual