1Highly Accurate: This laser levelling device emits a bright, clear green laser beam that can be seen up to 15m away, making it easy to obtain accurate results, whose high visibility and accuracy are clearly designed for home or office use. 2Easy to Cast Lines: This laser levelling device lets you cast horizontal, vertical, inclined and cross lines on a flat surface and easily view the reference points of a 12 line laser leveller, so you can measure just as smoothly. 3Automatic Levelling: This laser leveller allows you to select the laser line, allowing you to quickly switch between vertical or horizontal lines, or even display both lines at the same time. In addition, the laser levelling system automatically determines the correct level. 4High Performance: With a high level of chip and water resistance and an overmoulded housing, this laser leveling is built to withstand the harsh conditions of the job site and is robust enough to withstand rough use on a daily basis. In addition to being made from excellent materials, the line laser is scratch and abrasion resistant. 5Clear Levelling Lines: This laser levelling tool is built specifically for professionals to align. The line level laser provides a reliable automatic levelling system with clear, bright and fine laser levels and the green laser is easy to view in bright environments.