- Shanghai, China
- US $78.90
- Jan 30th
This product uses a wavelength of 635nm semiconductor laser tube (next-to-point laser tube wavelength of 50nm), the laser head clear and bright.Laser light is projected onto the wall fan generates a horizontal or vertical lines and one (ie, a so-called ink line). The angle between the two vertical lines above are 90 degrees.This product is widely used in the field of construction, decoration and equipment installation. It combines the original spirit level, theodolite, crossed function.