Line Lasers

GLL 50 Professional

Line Lasers

Self-Leveling Cross-Line Laser

  • Easy-to-use laser setup modes – projects vertical, horizontal and cross lines
  • Versatile job layout – lines can be projected separately or together for a variety of level and alignment applications
  • VisiMax™ technology – provides maximum line visibility in standard working conditions
  • Smart Pendulum System – allows tool to self-level, and it indicates out-of-level condition
  • Secure laser transport – after switching off, pendulum is locked
  • Simple keypad operation – easily select among the layout modes
  • BM3 Positioning Device – provides fast setup and microfine height adjustment
  • Robust over-molded construction – built to IP54 dust- and water-protection standards
  • Bosch measuring and layout tools are covered by a one year limited warranty with an additional year when you register your tool within eight weeks of purchase - for details, visit https://rb-pt.io/PowerToolWarranty or call 1-877-BOSCH99
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Functions & key features

Laser Configuration: 1 Horizontal and 1 Vertical Line to align and level.
Working range of up to 50 Ft (15 m).
Self-levels, indicates out of level condition by blinking and locks when switched off for secure transport.
IP 54 - Protected against dust and splashing water from any direction.​
Works with mounts and tripods using a 1/4"-20 or 5/8"-11 thread mount.

GLL 50 Professional

Technical data

The most important data

Connected No
Height in 4.2 "
IP Rating IP 54
Laser Beam Color Red
Laser Diode Class II 630 – 650 nm
Length in 4.4 "
Leveling Type Self-Leveling, Up to 4°
Material Plastic Composite
Mount Threading 1/4-20, 5/8-11
Number of Beams 2
Operating Temperature 14° F / -10° C ~1 22° F / 50° C
Range Up to 50-ft.
Weight 1.08 lb
Width in 2.2 "
Works With Tripods, BT160, BT170HD, BT300HD, BT 150, Telescoping Pole System, BP350, Grade Rods, GR 16, GR500, Mounts and Positioning Devices, WM 4, BM 1, BM3, RM 1, RM 2, LB10
Includes (1) GLL 50 Self-Leveling Cross-Line Laser
(1) BM 3 Positioning Device
(1) Laser Target
(3) AA Batteries
(1) Belt Pouch

GLL 50 Professional: Further information

Product Highlights

The Bosch GLL 50 Self-Leveling Cross-Line Laser Kit features a laser with vertical, horizontal and cross-line modes that projects two lines independently or together. This permits a broad array of alignment and leveling applications. It includes built-in VisiMax™ technology, which allows for outstanding line visibility in standard working conditions. The laser lines are visible up to 50 Ft., with an accuracy of ±1/8 In. at 33 Ft. The Bosch Smart Pendulum System self-levels and indicates out-of-level condition, to help ensure an accurate layout. It locks the pendulum after the laser is switched off for secure transport. The included BM3 Positioning Device offers quick setup in ceiling grid applications and free-standing mode with its retractable feet. This laser is built with sturdy over-molded construction for durability.

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