More modern versions of the tool add in a laser beam projector, which allows builders to level out the device and "draw" a long line of light across a wall, indicating an exactly level surface.
The Acer K750 is the world's first 1080p projector equipped with a hybrid laser-LED light technology, improving color saturation by 55% to deliver outstanding, energy efficient projection.
Between its picture quality and large screen, LG's 100-inch class Laser TV offers an uncanny theater-like experience at home, but without the difficult installation required by previous projector-based systems.