There are several types of laser levels in the market, but we are going to focus on the three basic laser levels most often used in the construction industry. These are the dot lasers, line level lasers, and rotary level lasers.
This is the simplest type of laser level available. This type of laser level projects a single pinpoint or dot on a surface to serve as a reference point. Some dot lasers can project as much as five beams all at once. You can use this tool in laying out interior walls, pipes, and electrical outlets and wirings. It is also known as a plumb laser as it works like an old school, albeit trusty, plumb bob.
Laser Line Level
Laser line levels project two lines: horizontal and vertical. You can project a single vertical or horizontal line at a time, or you can project these two lines together to make up a cross-line. These tools combine the accuracy of a spirit level with the practicality of a plumb bob. They are often used indoors and can be set on a table or mounted on a tripod or step ladder for easy, hands-free operation.
Laser line levels are often used in cabinetry, as well as in construction. Many laser line levels feature a self-leveling mechanism that prevents errors and maintains accuracy. Apart from vertical and horizontal lines, some laser line levels are also built to project laser pinpoint beams. You don’t have to buy a separate dot laser thanks to these laser line levels.
(Note that this article focuses on laser line levels. We’ll discuss rotary levels later on.)
Rotary Laser Levels
Rotary laser levels, which are larger than laser line levels or dot levels, are typically mounted on tripods similar to those used by surveyors. Unlike laser line levels, rotary levels spin repeatedly while producing multiple laser beams.
Rotary lasers are often used indoors where the laser beam can be projected on walls. But it can also be used outdoors provided that you bring a laser receiver.