What are advantages of the spirit level？

What are advantages of the spirit level？

This kind of level can be used for both short-distance measurement and long-distance measurement. It also solves the disadvantage that the existing level can only be measured in open places and is difficult to measure in narrow places

It has the advantages of accurate measurement, low cost, convenient carrying, economical and applicable.

The spirit level is light , nondeformable and easy to carry. It can be easily used by one person, and a spirit level can be used for many years if used correctly.