Whenever line measuring work is processing at different work distance and lighting occasions, it is not able to work with simple manual line printing work. On contrary, the selection of Berlinlasers 635nm red line laser module enables easy and quick red laser beam emission and highly clear red line alignment at various work distances. It is performing with the purest red laser light emission. Owing to its low laser beam divergence and special tem00 laser beam mode, this laser line generator is performing with straight and fine red line projection, without any tail of both ends of red line. The inner tube of 635nm red line laser module is applying qualified glass coated lens. It is projecting high quality and high fineness red line. When it is trying to make continuous line alignment, it just passes through quite strict laser beam stability tests and special use of glass window. The genuine operation gets no appearance of laser light decay or blur, but also enables freely selected fan angles of 10 degree to 110 degree. Only if this laser line generator selects correct optic lens degree and makes proper beam focus adjustment, it makes sure of no mistake and no barrier line alignment in all occasions effectively. Technical data: Item: Berlinlasers 635nm red line laser module Output power: 5mW-100mW Laser class: IIIa, IIIb Optic lens: 10-110 degree glass coated lens, separate crystal lens Power source: 5V, 9V 1000mA AC/DC adapter Tube diameter: 16mm, 26mm diameter aluminum alloy housing tube Applications: sand milling, lumber machine, laser cutting, textile processing and lab experiment etc http://www.berlinlasers.com/635nm-red-line-laser-module