Bosch Professional GLL 300-42 G Green Laser Technology.
Bosch GLL300-42G level and alignment laser with 360° laser planes; with features: Intuitive keypad design, Power flexibility, Rubber reinforced laser window, Large battery indicator, USB-C fast charging, Vertical on/off switch, Jobsite tough construction, Rubber grip base, and Versatile positioning options.
GLL300-42GL
Bosch Professional GLL300-42G Greenlaser Technology tool with ON and OFF switch.
Bosch level with GREEN LASER TECHNOLOGY, with a person inserting batteries.
A person wearing safety gear using a laser level, with the visible laser beam aligned with the handrail on the staircase. The laser level is a Bosch.
Person wearing a blue helmet, safety glasses, and a reflective vest uses a Bosch laser level to check a construction wall.
Bosch GLL300-42G level held by a person.  Visible text: "BOSCH Professional GLL300-42G GREEN LASER Technology".
Bosch GLL300-42GL owners operating instruction manual.
Bosch Professional GLL300-42G Green Laser Technology level with visible "ON" and "OFF" buttons.
Bosch laser level tool, mounted on a wall with green laser line visible, with text "Canada ICES-003(B)/NMB-003 (B)", "IEC 60825-1-2014 <10 mW, 500-540 nm", and laser safety warning.
Bosch Measuring & Layout Tools, LIMITED WARRANTY, 1 YEAR + 1 YEAR when you register. Register within 8 weeks for 2 years coverage.

GLL300-42GL Professional

Plane Lasers

3.7V 360⁰ Green-Beam Three-Plane Leveling and Alignment Laser with Li-Ion Battery

  • Power flexibility – works with the included rechargeable 3.7V Li-Ion 3.0 Ah battery, AA batteries (sold separately)
  • Jobsite tough construction – IP65 rated, for dust-tight and water-resistant durability in tough jobsite conditions
  • USB-C charging cord – for quick charging, even while in use
  • Built-in VisiMax™ technology – monitors power consumption to maximize line visibility and extend battery life
  • Bright green-beam laser – projects up to 4X brighter than standard red beams
  • Power-saving mode – helps to increase efficiency and extend battery life by adjusting brightness of the laser
  • All-in-one functionality – three chalk lines in 360º laser planes – one horizontal and two vertical make the tool a complete level as well as an alignment laser with simplified and speedy job setup
  • Bright, thin lines – with 100 Ft. range that level within 1/8 In. accuracy at 30 Ft. distance
  • Smart Pendulum System – self levels, indicates out-of-level condition and locks when switched off for secure transport
  • Receiver compatible – for further range extension to 260 Ft. measured at the horizontal line at 135º and 315º (sold separately)
  • Magnetic L-bracket – with strong magnets for versatile positioning
  • ¼ In. and 5/8 In. threading mount – for secure tripod attachment
  • Full rubber overmold housing – helps protect every major impact point, with a design similar to a roll cage
  • Rubber grip base – for stable operation and grip in challenging work environments
  • 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

Measuring tools positive icon for web: USB Type-C
Measuring tools positive icon for web: Smart Pendulum System
Measuring tools positive icon for web: 260 ft Receiver Range
Measuring tools positive icon for web: IP 65 Rating
Measuring tools positive icon for web: 18V & 4xAA Battery Power Flexibility

GLL300-42GL Professional

Technical data

The most important data

Connected
No
Height in
4.75 "
IP Rating
IP 65
Laser Beam Color
Green
Laser Diode
Class 2, 500-540 nm
Length in
13.5 "
Leveling Type
Self-Leveling, Up to 4°
Material
Plastic Composite
Mount Threading
1/4-20, 5/8-11
Operating Temperature
14° F / -10° C up to 104° F / 40° C
Range
100 ft. without receiver, 260 ft. with receiver
Weight
5.3 lb
Width in
11 "
Includes
(1) GLL300-42GL 3.7V 360⁰ Green-Beam Three-Plane Leveling and Alignment Laser
(1) GBA37V30 3.7V Lithium-Ion 3.0 Ah Battery
(1) Alkaline Battery Adapter
(1) Magnetic L-Bracket Mount
(1) Laser Target Plate
(1) USB-C Charging Cord
(1) Hard Carrying Case

GLL300-42GL Professional: Further information

Product Highlights

The Bosch GLL300-42GL 3.7V 360º Green-Beam Three-Plane Leveling and Alignment Laser provides an all-in-one level and alignment solution with incredible power flexibility. Versatile power options help maximize productivity and keep the laser up and running, with the ability to use with the included rechargeable 3.7V Li-Ion 3.0 Ah battery, AA batteries (sold separately) or even use while charging with the included USB-C cord. Built-in VisiMax™ technology optimizes line visibility for working conditions to further enhance accuracy and battery life. The leveling laser emits three bright green-beam laser chalk lines in 360° laser planes – one horizontal and two vertical for high-visibility and fast, streamlined job setup from one initial point. Full rubber overmold housing helps protect the level at every major impact point. IP65-rated, the laser can withstand tough, rainy conditions and is dust-tight for enhanced protection. The laser has a working range of up to 100 Ft., and the bright, vivid, thin lines provide an accuracy of 1/8 In. at 30 Ft. Further extend the range to 260 Ft. (measured at the horizontal line at 135º and 315º) with the level’s receiver compatibility (sold separately). Equipped with a Smart Pendulum System, the tool self-levels, will indicate any out-of-level condition and then locks when switched off for secure transport. Power-saving mode and brightness adjustment options help maximize runtime and battery life. Keep a handle on the laser with the rubber grip base and easily position using the ¼ In. and 5/8 In. threading mounts.