1. We can see 3 tubes on the Spirit Level Tools
, there is a bubble in each tube, and the professional name is called water. Both are the shockproof end, and if this bubble is in the middle, it indicates horizontal. If there is an uneven problem, which is biased, it indicates which side is high.
2. Before using it, you need to level your Spirit Level Tools
. Place it on a stable tablet, wait until stabilization, one end reading should be 0, then adjust the Spirit Level Tools
to 180 degrees, placed in the original position, then stabilize, then read data.