1. Absolute angle measurement
Press the "power switch" key to directly enter the absolute angle measurement state, and the LCD digital display screen will display the angle value between the measured surface and the horizontal surface. When the angle between the working surface of the level ruler and the horizontal plane changes, the angle value will change accordingly. When the inclination direction prompt is displayed as "", it means that the horizontal ruler is low on the left and high on the right, and the displayed angle is a positive number; when it is displayed as ", it means the horizontal ruler is high on the left and low on the right, and the displayed angle is negative; When the measurement angle exceeds the measurement range, the level will display an error prompt.
2. Relative angle measurement
Put the level on the first measured surface, press the "absolute/relative" key, the display is 0.00; the relative angle measurement prompt "<" appears at the upper right of the LCD screen, and the level moves to the second measured surface , the LCD display value is the relative angle between the above two measured surfaces. Press the "absolute/relative key" again to convert to the absolute angle measurement
