Spirit Level
Also known as
Bubble Level, Carpenter's Level, Level, Torpedo Level
Used for
Verifying that a surface, fixture, or structure is truly horizontal or vertical. Used for leveling speaker cabinets, PA arrays, lighting bars, and scenic platforms.
Trade note
"Spirit" refers to the alcohol (spirit) inside the sealed glass tube — it has a lower freezing point than water so the bubble still moves in cold conditions. The short version (9–12") is called a torpedo level from its shape. Digital versions show a numerical angle readout.
Direct answer
Spirit Level is used for verifying that a surface, fixture, or structure is truly horizontal or vertical. Used for leveling speaker cabinets, PA arrays, lighting bars, and scenic platforms. It is also known as Bubble Level, Carpenter's Level, Level, Torpedo Level. Trade note: "Spirit" refers to the alcohol (spirit) inside the sealed glass tube — it has a lower freezing point than water so the bubble still moves in cold conditions. The short version (9–12") is called a torpedo level from its shape. Digital versions show a numerical angle readout.
Reviewed