RT Agencies sells the following Line Laser from doyen
The Doyen 360 Line Laser is a entry level Laser Level that is a great choice for the up and coming business. The Laser Line is visible to up to 300m.
From geo FENNEL.
FL 40 Line Laser is a laser level that is tough and reliable and suitable for indoor partitioning work.
FL 55 Multi-liner a multi-Functional self leveling cross laser that has a robust design.
FL 70 Line Laser part of the selection pro range from geo FENNEL is highly accurate and with a highly visible laser line.
And From Laser Liner the Super Cross Laser
A line Laser uses a optic to project a straight line on a surface most lasers have a automatic compensator that helps the laser to stay completely plumb and level