Glass tubular spirit level bubble vial
  High precision level vials
  Precision level vials
  Bent glass level vials
Glass circular spirit level bubble
  Glass circular spirit level bubble
Metal spirit level
  Instrument spirit level
  Metal circular bubble levels
Plastic circular spirit level bubble
  Plastic circular level bubble
Plastic tubular spirit level vials
  Plastic tubular level vials
Spirit levels
  Torpedo spirit levels
  2 Axis spirit levels
  Mini spirit levels
Sensor vial
  Sensor vial
Self illuminated spirit level
  Metal self illuminated bubble level
Special spirit level bubble
  Special spirit level bubble
  Camera spirit level


The definition of Spirit Level

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,bricklayer, other building trades workers, surveyors,millwrights and other metalworkers.

Original spirit levels had two banana-shaped curved glass vials at each viewing point and were much more complicated to use. In the 1920s, Henry Ziemann, the founder of Empire Level, invented the modern level with a single vial. These vials, common on most ordinary levels today, feature a slightly curved glass tube which is incompletely filled with a liquid, usually a yellow-colored 'spirit' (a synonym for ethanol), leaving a bubble in the tube. Ethanol is used because of its low freezing point, −114°C, which prevents it from freezing in cold weather. Most commonly, spirit levels are employed to indicate how horizonal (level) or how vertical (plumb) a surface is.

Some are also capable of indicating the level of a surface between horizontal and vertical to the nearest dgree. The crudest form of the spirit level is the bull's eye levell: a circular flat-bottomed device with the liquid under a slightly convex glass face which indicates the center clearly. It serves to level a surface in two perpendicular directions, while the tubular level only does so in the direction of the tube. The most sophisticated spirit levels are guaranteed accurate to five-ten-thousandth of an inch (.0005) per inch and are much easier to read because of their blue colour.

There are different types of spirit levels for different uses:

  • Surveyor's leveling instrument
  • Carpenter's level (either wood, aluminum or composite materials)
  • Mason's level
  • Torpedo level
  • Post level
  • Line level
  • Engineer's precision level
  • Electronic level
  • Clinometer or Inclinometer
  • Slip or Skid  Indicator
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ICP 08006493    Copyright 2008 by Hengshui HUIDE Level Instrument Co., Ltd.