توضیحات:

A spirit level, bubble level or simply a level is an instrument designed to indicate whether a surface is horizontal (level) or vertical (plumb). Different types of spirit levels may be used by carpenters, stonemasons, bricklayers, other building trades workers, surveyors, millwrights and other metalworkers, and in some photographic or videographic work.

♪♬ Bubble Spirit Level Features♬♩
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♪ Works on horizontal and Vertical modes.
♪ Sound signals for matching.
♪ Light weight having no extra features than the spit level.
♪ Easy to use.
♪ Does not require any network connectivity.
♪ FREE