A laser level, also known as a laser line level, is a device that projects a horizontal or vertical laser line onto a surface. This line can be used as a reference for leveling objects or for aligning objects in a straight line. Laser levels are often used in construction, carpentry, and other trades where precision is important.
Laser levels are relatively easy to use. First, the level needs to be set up on a stable surface. The level can then be turned on and the laser line will be projected onto the surface. The line can be adjusted to be horizontal or vertical, and the brightness of the line can also be adjusted. Once the line is set up, it can be used as a reference for leveling or aligning objects.