A spirit level is a tool for measuring horizontal and vertical planes. It usually consists of a long, flat housing equipped with vials. A bubble level is a small, cylindrical tube filled with liquid and with a bubble inside. When the bubble level is in the center of the tube, the corresponding plane is horizontal or vertical.

A laser spirit level is an evolution of the traditional spirit level. Instead of relying on bubble levels, it uses a built-in laser beam to make accurate measurements. Activating the laser creates a visible beam that serves as a reference line. This allows for precise alignments and leveling over long distances.

The laser level is often used in construction and home improvement projects where high accuracy is required. For example, it can be used when hanging pictures, installing shelves or aligning tiles. Using a laser makes it easier to work with a spirit level and the measurements are faster and more accurate.