David White 3110-gr Self-leveling Rotary Grade Laser Level, Topcon, Spectra

How to use a Johnson Rotary Laser Level Building Tips for DIY SEPTIC u0026 Foundation leveling

David White 3110-gr Self-leveling Rotary Grade Laser Level, Topcon, Spectra. Country/Region of Manufacture United States. David White 3110-GR is a one-person leveling system designed for the most rugged environments.