Precise 4D 16-line measurement system This laser level has a unique 4D 16-line design, with 16 green laser lines that create an all-encompassing network of four 360 planes, including two horizontal and two vertical planes. Whether you're laying a large area of flooring that needs to be level, installing a ceiling light that requires a high level of horizontal position, or controlling the verticality of a wall when building or tiling, the laser level provides a precise frame of reference that covers the construction space, allowing you to work more efficiently and accurately. Compared with the traditional level meter with few lines, it greatly reduces the blind spot of measurement and improves the working efficiency and accuracy of measurement. Clear and Bright Green Laser Adopting advanced green laser technology, the 515nm laser wavelength is stable and efficient. Compared with the common red laser, the green laser has higher contrast and recognition in the human eye, and the light is clear and bright, which is clearly discernible even in strong light environments, such as outdoor construction sites and indoor spaces under direct sunlight. The laser intensity meets the relevant safety standards, which ensures high visibility and does not cause harm to the eyes. At the same time, the instrument has a laser brightness adjustment function, you can easily adjust the laser brightness according to the light conditions of the actual working environment, always ensure that the laser line is clearly presented, providing a stable and clear reference for your measurement work. Intelligent automatic levelling, efficient and convenient With fast and accurate automatic levelling function, the levelling range is within 3. When you place the level on the working plane, it can automatically detect and adjust to the horizontal state in just 6 seconds, without the need for you to manually calibrate, which greatly saves the operation time. If the level is placed at an angle outside of the levelling range, the instrument will immediately sound an alarm to remind you to re-adjust to ensure the accuracy of the measurement results. In addition, when there is a slight vibration or displacement of the working plane, the instrument can sense it in real time and re-level automatically, always maintaining the precise horizontal and vertical state of the laser line, so that you can use it with peace of mind even in complex construction environments.