usage method

Placement: Place the bubble level on the surface to be measured, such as a wall or floor.

Adjustment: Adjust the position of the bubble level until both the horizontal and vertical lines are in the direction to be measured.

Observation: Observe whether the bubble is centered in the center of the bubble shell. If not, adjust the direction by moving the knob or foot.

Record: Finally confirm that the bubble is in a horizontal state, and then record or record the required data.

The working principle of the bubble level is based on the surface tension and gravity of the liquid. When the bubble level is placed on the surface to be measured, the liquid will be evenly distributed between two disks, and the bubbles will move to the highest point of the liquid, which is the horizontal position. If the surface is not horizontal, the bubble will deviate from the central position due to gravity, and the surface's levelness can be determined by observing the position of the bubble.