Hilti PR-30-HVSG A12, 33 ft. Self Rotating Green Laser Level Including Lithium-Ion Battery and Charger 3592643 - The Home Depot
Laser Level 33-50 Feet Self-Leveling Line Lasers with Horizontal & Vertical Line Cross-Line Laser, SORAKO Line Laser Level Tool for Construction, Laser Class II (Batteries Included) - Amazon.com