Johnson Level Tool 40-6648 Cross-line Laser Level 100 Ft

Product Description

The JOHNSON LEVEL TOOL 40-6648 is a self-leveling cross-line laser level designed for layout and alignment work on job sites. It projects both horizontal and vertical laser lines simultaneously and adds a 90-degree plumb line for checking square reference on beams, posts, and structural members. The unit has a working range of 100 feet and includes a 1/4-20 tripod thread for mounting on standard tripods or rod systems. A manual override mode lets technicians lock the laser head and project lines at any angle, making it useful for stair layout and other non-level applications. Weighing 0.463 pounds, it is compact enough for single-person operation.

This laser level is suited for residential and light commercial construction, framing, finish carpentry, electrical rough-in layout, and plumbing alignment tasks. The cross-line projection covers ceiling, wall, and floor reference simultaneously, reducing the need for chalk lines or repeated measurements. The 90-degree plumb line is particularly useful for plumb transfer between floors or for setting vertical reference on posts and columns. Tradespeople installing suspended ceilings, partition walls, or conduit runs will find the dual-line plus plumb configuration practical for common layout scenarios.

Key Features

• 100-foot working range for large room and bay coverage
• Self-leveling function automatically levels lines for fast setup
• 90-degree plumb line for checking and transferring square reference
• Manual mode locks head for non-level projection angles including stair layout
• 1/4-20 tripod thread compatible with standard tripods and adjustable bases
• Includes two AA alkaline batteries for immediate use out of the box

Compatibility

Designed for use with any standard 1/4-20 threaded tripod or laser mounting bracket commonly used in construction and trades layout applications.

Installation Notes

Setup and operation does not require a licensed trade, but job-site laser safety practices apply — avoid directing the beam toward eyes and post appropriate laser warnings in occupied work areas. Mount the unit on a stable tripod or flat surface before activating to allow the self-leveling pendulum to settle. In manual mode, ensure the head lock is fully engaged before projecting to prevent drift. Keep the lens free of dust and debris to maintain line brightness and accuracy.

Technical Specifications

• Working Range: 100 feet
• Plumb Line Angle: 90 degrees
• Tripod Thread: 1/4-20
• Included Batteries: 2 AA alkaline
• Weight: 0.463 pounds
• Unit of Measure: Each

Standard Information

• Brand: JOHNSON LEVEL TOOL
• Manufacturer Part Number: 40-6648