LCD 12Lines Laser Level Self-Leveling 360 Horizontal And Vertical 3D Green Beam
The laser level has three laser windows, each window can launch 4 laser lines, totally 12 laser lines(4 laser lines combine to a plane). Attention: There are at least 4 laser lines, it can not keep 1 or 2 laser lines. Once the pendulum is in unlocked condition, the instrument will be self-leveling within 4