1. Laser horizontal ruler can measure whether the plane is uneven or hanging, etc.
LV2 laser horizontal ruler can make a straight line.
2.There are horizontal beads on the laser horizontal ruler, which can measure whether the horizontal plane is horizontal or not.
3.The LV2 laser horizontal ruler also has a water bead measuring 45 degrees angle.
4.Laser level ruler with a ring ruler. (2.5 m circle ruler with inch scale)
LV2 laser scales (15cm, 6in) on the edge of the horizontal ruler