English version

spirit level in Tools topic

From Longman Dictionary of Contemporary Englishspirit levelˈspirit ˌlevel noun [countable] especially British English  spirit_level.jpg TITZa tool used for testing whether a surface is level
Examples from the Corpus
spirit levelThe hinge itself must also be horizontal, using a spirit level.Simply line up the shelf in position, using a spirit level, before permanent fixing for a really professional result.Tap in place with the club hammer handle and check with a spirit level as work progresses.