Power Tools for Professionals



360⁰ Three-Plane Leveling and Alignment-Line Laser

The Bosch GLL3-300 360° Three-Plane Leveling and Alignment-Line Laser features an all-in-one level and alignment solution. This leveling laser provides fast one-spot job setup. It allows users to line up level, align, square and plumb with one setup point by generating three 360° laser planes – one horizontal and two vertical. Featuring an upgraded diode with a brighter beam than previous generation lasers, the GLL3-300 has a visible range of up to 200 Ft. diameter. The leveling laser features pulse mode, extending the working range up to 300 Ft. diameter and/or in bright lighting, using the optional LR8 receiver or LR 6 receiver. The VisiMax™ Technology drives maximum line visibility, and the robust over-molded construction withstand rainy or dusty jobsite conditions. The included BM1 positioning device clips to multiple surfaces and provides quick and easy setup.

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  • (1) GLL3-300 360⁰ Three-Plane Leveling and Alignment-Line Laser
  • (1) BM1 Positioning Device
  • (1) Laser Target
  • (4) AA Batteries
  • (1) Heavy-Duty Pouch
  • (1) Hard Carrying Case


  • Complete level and alignment laser – quickly arranges and squares room layout with three chalk lines in 360° laser planes
  • Built-in VisiMax™ technology – monitors power consumption to maximize line visibility and extend battery life
  • Upgraded diode with a brighter beam – delivers a visible range of up to 200 Ft. diameter
  • Pulse mode – extends the working range up to 300 Ft. diameter and/or in bright lighting, using an optional LR8 or LR 6 receiver
  • BM1 positioning device – clips to multiple surfaces, stands on floor with retractable feet and mounts to drywall or wood with screws for quick and easy setup
  • Smart Pendulum System – self levels and indicates out-of-level condition up to ±4°
  • Manual mode – locks lines for use at any angle
  • Robust over-molded construction – IP54 ensures splash water/dust protection for years of dependable operation

Technical Data

Height 5.6"
IP Rating IP 54
Laser Beam Color Red
Laser Diode Class II 630 – 650 nm
Length 5.9"
Leveling Type Self-Leveling, Up to 4°
Material Plastic Composite
Mount Threading 1/4-20, 5/8-11
Note: Packaging content may vary by retailer.
Operating Temperature 14° F / -10° C up to 104° F / 40° C
Range Up to 200-ft. diameter
Weight 1.8lb
Width 3.3"
Works With Laser Receivers
LR 6, LR8
BT160, BT170HD, BT300HD, BT 150
Telescoping Pole System
Telescoping Leveling Rods
GR 16, GR500
Mounts and Positioning Devices
WM 4, BM 1, BM3, LB10, RM 2
Includes (1) GLL3-300 360⁰ Three-Plane Leveling and Alignment-Line Laser, (1) BM1 Positioning Device, (1) Laser Target, (4) AA Batteries, (1) Heavy-Duty Pouch, (1) Hard Carrying Case
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Owner's Manual


Accessories and Attachments For GLL3-300

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


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