Power Tools for Professionals

GLL 3-50 S


Three-Line Laser with Layout Beam

The Bosch GLL 3-50 S Three-Line Laser with Layout Beam Kit provides a layout laser, a 360° rotational mounting base and a durable belt pouch. The GLL 3-50 produces one horizontal line, two vertical lines plus plumb down point - for level, align, plumb and square applications. This helps users quickly layout the job, with precision. The included mounting base helps users effectively set right angles up to 33 Ft. without having to reset. The base has manual fine adjustment, which allows for easy setup and convenient viewing of the laser point on the floor. The Smart Pendulum System self-levels and indicates out-of-level condition. It has a pulse mode, for use with the optional LR2 laser receiver, to extend its range up to 165 Ft. And it offers an accuracy of ±1/8 In. up to 33 Ft.

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  • (1) GLL 3-50 Three-Line Laser
  • (1) 360° Rotational Mounting Base
  • (1) Laser Target
  • (4) AA Batteries
  • (1) Pouch


  • Fast, straightforward job layout – level, align, square and plumb with one setup point
  • 360° rotational mounting base – provides manual fine adjustment for easier setup
  • Pulse mode – allows tool use with the optional LR2 laser receiver, to extend its range up to 165 Ft. distance
  • Smart Pendulum System – allows tool to self-level, and it indicates out-of-level
  • Secure laser transport – after switching off, pendulum is locked
  • Dual mounting treads – tool has both 1/4 In.-20 and 5/8 In.-11 for flexibility
  • Durable belt pouch – provides more secure laser transport

Technical Data

Battery 4 AA 1.5V Batteries
Height 4.4"
IP Rating IP 54
Laser Beam Color Red
Laser Diode Class II 630 - 670 nm
Length 5.7"
Leveling Type Self-Leveling, Up to 4°
Material Plastic
Mount Threading 1/4-20, 5/8-11
Number of Beams 4.0
Operating Temperature 14° F / -10° C up to 104° F / 40° C
Range Up to 33-ft.
Range w/ Optional LR2 Receiver Up to 165 feet
Weight 2.0lb
Width 3.3"
Works With Laser Receivers
LR 2
BT160, BT170HD, BT300HD, BT 150
Telescoping Pole System
Telescoping Leveling Rods
GR 16, GR500
Mounts and Positioning Devices
WM 4, BM 1, BM3, LB10
Includes (1) GLL 3-50 Three-Line Laser, (1) 360° Rotational Mounting Base, (1) Laser Target, (4) AA Batteries, (1) Pouch
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Owner's Manual

GLL 3-50 S

Accessories and Attachments For GLL 3-50 S

Laser Receivers
Levels/Leveling Rods
Pole System
Positioning Devices/Ceiling Clips


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