Johnson's 40-6648 self-leveling cross and line laser combines the features of a cross line with an additional 90 degree plumb line useful for checking square reference of beams, posts or any other object. A 1/4 In. to 20 tripod thread and manual mode also let you project orthogonal lines at any angle, for stairs and other non-level applications.
Key Features:
• 1 Horizontal and 2 vertical lines at 90 degrees
• Manual mode for use at any angle
• Locking compensator protects pendulum during transport
• Visual out-of-level indicator
• 1/4-In-20 tripod thread for use with most common tripods