【實用生活app】Clinometer|最夯免費app-綠色工廠好玩App

A spirit level or bubble level is an instrument designed to indicate whether a surface is level or plumb. Different types of spirit levels are used by carpenters, stone masons, bricklayers, other building trades workers, surveyors, millwrights and other metalworkers, and serious videographers. Also it is designed to be simple and practical. Just adjust the sensitivity from low to extreme accuracy and leave the rest for the bubbles!