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What is an Automatic Laser Level?

Article Details
  • Written By: N. Kalu
  • Edited By: Allegra J. Lingo
  • Last Modified Date: 19 September 2018
  • Copyright Protected:
    2003-2018
    Conjecture Corporation
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An automatic laser level is a device that ensures a level and even surface or base for any construction project, whether indoors or outdoors. Small automatic laser levels are often used to provide a line of reference for hanging artwork, tiles, or any item that requires straight grid lines. Of the automatic laser levels, the rotary laser level is one of the most popular.

Laser level tools, such as the automatic laser level, work by projecting a visible laser line on a surface. For the most effective use, it is important that the device is placed on a stable, flat surface. Many construction professionals or do-it-yourself individuals choose to buy a laser level tripod to keep the level steady while in use. A tripod leaves the user free to manipulate the items that need to be leveled without worrying about the stability of the laser level.

An automatic laser level is equipped with a wide variety of tools and features. Some current models include an anti-drift audio system that alerts the user to any shift in the laser level's position. There are also models that project multiple laser beams onto a surface in a grid pattern. This allows the user to more easily arrange and align items. Furthermore, most models are equipped with a battery level indicator to warn of decreasing power levels.

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A typical rotary laser level possesses these features and more. As a type of the automatic laser level, it has the power to self-level, simplifying the process for the user. Most also come with manual leveling capabilities for more hands-on manipulation. The accuracy of rotary laser levels is satisfactory. They are accurate within 0.125 inch (0.31 cm) at 100 feet (30.48 m) for self-leveling and within 0.24 inch (0.6 cm) at 100 feet (30.48 m) for manual leveling.

It is easy to use an automatic laser level such as the rotary laser level because no initial calibration is required. The tool automatically calibrates the laser level according to standard. Before working, it is best that the laser level is set on a sturdy tripod or, if no tripod is available, on an elevated, flat surface such as an overturned bucket or a small table.

To begin leveling, the laser is directed toward the surface of interest and beamed out to the surface. Marking the points or lines traced by the laser level with a pencil will serve as a reference for the user later on. This also allows the user to continue the project without worrying if the laser has shifted from its initial setup.

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