4D Laser Level Receive Cross 16 Line Self-Leveling 360 Horizontal Vertical Green
4D Laser Level Receive Cross 16 Line Self-Leveling 360 Horizontal Vertical Green. About 4D 16 Lines Laser Level 360. The object surface should be placed horizontally. If it goes beyond the scope of ±4 degrees, it cannot be automatically leveling. In this situation, please adjust the legs until the green bubble on the top the