Feature:1. Widely used in angle measurement in wood, automobiles, drilling machinery, etc.2. The builtin magnet at the bottom makes it easy to connect to the object to measure.3. Portable size, it is convenient to cooperate with other measuring tools to enlarge the measuring range.4. Highdefinition LCD display, highaccuracy resolution, intuitive display of measurement results.5. Digital inclinometer adopts high quality ABS material, light weight, sturdy and durable.Specification:Item Type: Digital InclinometerMaterial: ABSColor: As shown in the pictureMeasuring Range: 4x90Working Temperature: -10~50Working Humidity: 85%Resolution: 0.05Accuracy: 2Battery: 2 x AAA dry batteries (not included)Waterproof Level: IP54How to Use1. Press the on/off button and place the bottom plane of the bevel frame on the calibrated platform, the LCD display shows "CAL1" and enters the calibration state, then press and hold ZERO to reset.2. Place the lower left corner of the inclined plane box on the surface of the platform, and slowly rotate the right side of the inclined plane box along the left axis corner. When the LCD display shows "CAL11", stop the rotation and return to the original direction clockwise to make the base surface of the inclined frame and the platform surface smooth. Wait until the LCD display shows "CAL2".Slowly rotate 90 degrees clockwise along the lower right corner to make the right side and the platform smooth. Wait until the LCD display shows "CAL3" slowly rotate 90 degrees along the lower right.Turn the corners clockwise to make the upper plane and platform smooth. Wait until the LCD display shows "Cal4" and slowly rotate 90 degrees clockwise along the protruding hand corner to make the left side and the platform smooth. Wait until the LCD display shows "CAL5".Slowly rotate 90 degrees clockwise along the lower right corner to make the bottom plane and platform smooth. Wait until the LCD screen displays "Pass" and then "0.00".Slowly rotate 90 degrees clockwise along the protruding hand corner to make the left side and the platform smooth. Wait until the LCD display shows "CAL5".Slowly rotate 90 degrees clockwise along the lower right corner to make the bottom plane and platform smooth. Wait until the LCD display shows "Pass", then "0.00".Package List:1 x Digital Inclinometer(Battery Not Included)1 x Instruction Manual