In order to avoid mistake of cross line aligning accuracy and avoid mistake by manual operation, it is the most efficient solution for users to adopt Berlinlasers red cross line laser module. It is in need to make continuous cross line alignment, only after its easy connect with DC input power supply and larger inner space for metal heat sink cooling system, it gets quite nice thermal emitting and highly stable red cross line projection in continuous work. This red cross line laser module is getting selected optic lens degree of 10, 15 and 110 degree, which is achieving different cross line length within 0.5 meter to 6 meters in distance. It is a key point to make basic measurement of line length, line thickness and work distance, this cross laser alignment is getting correct selection of output power and optic lens degree, which makes sure of the most satisfied cross line measurement for all industrial and high tech precise device manufacturing work fields effectively. http://www.berlinlasers.com/650nm-red-cross-line-laser-module