A line laser projects one or more laser lines onto the wall, floor or ceiling. Most line lasers have at least two laser lines, one horizontal and one vertical, which together form a cross. With the line lasers shown here, these laser lines are automatically aligned horizontally and vertically. The line laser replaces a spirit level and makes it easy to align building elements or decorations.
Some line lasers can be used with a laser detector. With the laser detector, you are no longer dependent on the visibility of the laser line. This increases the working range and enables leveling in bright light (e.g. sunlight).