The GPR R9H Rotary Laser Level is a high-performance, low-cost rotary laser level. The GPR R9H performs extremely well, even when compared with much more expensive models. It is reliable, durable and extremely accurate. It is capable of:- Leveling Horizontal scanning Vertical scanning Directional scanning Slope adjustment on x and y axis Accuracy checking NOTE: This is a direct replacement for the GPR-R2H.