Johnson 4065-17 self leveling rotary laser leveling system nib was499 make offer rated for outdoor and indoor use at up to 800 ft. Lockable, Out-Of-Level Shutoff, Rotating, Self-Leveling. Model leveling rotary laser leveling system. 3 rotational speeds 200, 400 or 600 RPM. Self-Leveling Rotary Laser Kit 800 ft.