The GTL 3 Professional Laser Level makes very fast the tile laying due to additional line at 45°.In addition to the two laser lines at a 90° angle, it projects a third line at 45° for precise and fast alignment and laying of wall and floor tiles. ita has a high accuracy of 0.2 mm/m. It is very compact and lightweight design for optimum ease of use.It has clearly visible laser lines for indoor use. Also it has an a utomatic shutdown to reduce battery consumption. It has a 20m alignment.