GLL50-20 Self-Leveling Cross-Line Laser, 50 Ft. Range

The Bosch GLL50-20 is a self-leveling cross-line laser that projects both horizontal and vertical red lines simultaneously for leveling and alignment work. With a 50-foot range and 5/16-inch accuracy at 30 feet, it delivers the precise reference lines needed across job sites and in workshops.

With its compact, lightweight, and ergonomic design, the GLL50-20 is easy to handle and store. The full rubber overmold housing protects critical components from impacts, while its IP55 dust and water-resistant rating ensures reliable performance in challenging jobsite conditions. Position the tool using the included integrated magnetic mount or utilize the 1/4-inch threading mount that fits standard tripods.

Features and Benefits

• Self-Leveling with Smart Pendulum System: The tool automatically levels itself and emits a blinking indicator if positioned out of level, then locks in place when powered off for secure transport.
• Cross-Line Mode: Projects both horizontal and vertical red laser lines for comprehensive leveling and alignment work.
• 5/16-Inch Accuracy at 30 Feet: Delivers precise leveling results with bright, thin lines that are easy to see and follow.
• Flexible Power Options: Operates on two included AA batteries or an optional Bosch 3.7V Lithium-Ion 1.0 Ah battery (sold separately), allowing use while charging to minimize downtime.
• IP55 Rating: Dust and water-resistant construction withstands rain, dust, and tough jobsite conditions.
• Tilting Capability: Tilt the laser to project lines at angles for custom layout applications.
• Dual Mounting Options: Integrated magnetic mount and 1/4-inch threading for tripod compatibility.

Specifications

• Brand: Bosch
• Model: GLL50-20
• Laser Type: Self-leveling cross-line, Class II laser (630–650 nm, <5 mW)
• Range: 50 feet
• Accuracy: 5/16 inch at 30 feet
• Beam Pattern: Two-beam horizontal and vertical red lines
• Power Source: Two AA batteries (included) or Bosch 3.7V Lithium-Ion 1.0 Ah battery (sold separately)
• Dust and Water Resistance: IP55 rated
• Housing: Full rubber overmold for impact protection
• Mounts: Integrated magnetic mount and 1/4-inch threaded mount for tripods
• Dimensions: 4.1 x 2.5 x 0.1 inches
• Weight: 0.77 pounds
• Color: Blue