Most laser levels are self-leveling, using an internal pendulum and magnet mechanism to indicate when the beam is completely level (and blinks to indicate it's not level yet).

The Kings’ beam, made up of six 300-watt Laser Space Cannons, lights Sacramento’s skyline with the team’s signature violet hue. From miles away, ... Light the Beam.

Storm in a laser beam: Physicists create 'light hurricanes' that could transport huge amounts of data. ScienceDaily. Retrieved June 11, 2025 from www.sciencedaily.com / releases / 2024 / 11 ...

A new method enables the conversion of noisy, high-power laser beams into intensity-squeezed quantum light by passing them through nonlinear optical fibers and programmable spectral filters.