Bosch GLL40-20G Green-Beam Self-Leveling Cross-Line Laser

Bosch Model: bshngll40-20g
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Bosch GLL40-20G Green-Beam Self-Leveling Cross-Line Laser Bosch Model: bshngll40-20g
price for vip customer


Product Features & specs :

Green Laser

Better than Red

The green laser emitted by this tool is up to 2x brighter than red lasers

VISIMAX Technology

Efficient Power Management

Ensures bright beam projection while optimizing your batteries

Smart Pendulum


Indicates if conditions are out-of-level

Ergonomic & Compact


This tool only weighs 0.5 Lbs. for easy use and transport

Bosch GLL40-20G Green-Beam Self-Leveling Cross-Line Laser


The Bosch GLL40-20G self-leveling cross-line laser projects visible green laser lines, which are up to 4x brighter than standard red beams. The tool has a working range of up to 40 ft. and offers reliable accuracy of +5/6 in. at 30 ft. It features Bosch-exclusive visi-max technology, which monitors tool temperature and power consumption to deliver the brightest line for the job, optimized energy efficiency and long-term tool reliability. The cross-line laser is also equipped with a smart pendulum system allowing for automatic self-leveling and indication of out-of-level condition, as well as pendulum Lock for safe tool transport. The included 2mm flexible mounting device provides a rotating 360 degrees neck for quick setup and simple fine-tuning allowing for the laser to be clamped onto virtually any surface from 1/2 in. to 2-1/4 in. thick.


  • Compact 40 ft. cross-line laser design - features green beams for visibility, self-leveling technology for accuracy and visible for brightness

  • Class 2 Laser Product, < 5mW Power Output, Wavelength 500-540 nm

  • Visi-max technology - delivers maximum beam brightness, optimized energy efficiency and long-term tool reliability

  • Bright green-beam laser lines - up to 4x brighter than standard red beams

  • Cross-line mode - projects two bright lines that are precisely level and plumb for a wide array of leveling and alignment applications

  • 2mm flexible mounting device - clamps to multiple surfaces and provides a rotating 360-degree neck for quick setup and simple fine-tuning

What’s Included:

  • Green-Beam Self-Leveling Cross-Line Laser - GLL40-20G

  • Mounting Device

  • Pouch

  • (2) AA Batteries

Power Source


Wifi compatibility


Batteries Included


Battery Type


Accuracy Margin (Horizontal)

+/- 5/16 in

Bluetooth Compatibility


Accuracy Margin Distance (Horizontal)

30 ft

Self-Leveling Range

4 Degress

Effective Range (Visual)

40 ft

Charger Included


Tripod Thread

1/4 in - 20 in

Case Included


Operating Temperature (F).Run Time (Max.)

41 Degrees Fahrenheit - 104 Degrees Fahrenheit (5 Degrees Celsius - 40 Degrees Celsius)

Case Type


Accuracy Margin (Vertical)

+/- 5/16 in



Laser Color


Laser Diode

500 - 540 nm

Laser Class

Class II

Accuracy Margin Distance (Vertical)

30 ft


3.2 in.


2.3 in.


3.2 in.


0.5 lbs.

Warranty Term

2 Year

Reviews :

Q & A :


Bosch Laser & Measuring Tools Warranty Robert Bosch Tool Corporation ("Seller") warrants to the original purchaser only, that all Bosch lasers and measuring tools will be free from defects in material or work­manship for a period of one (1) year from date of purchase. Bosch will extend warranty coverage to two (2) years when you register your product within eight (8) weeks after date of purchase. Product registration card must be complete and mailed to Bosch (postmarked within eight weeks after date of purchase), or you may register on-line at

If you choose not to register your product, a one (1) year limited warranty will apply to your product. 30 Day Money Back Refund or Replacement If you are not completely satisfied with the performance of your laser or optical instrument, for any reason, you can return it to your Bosch dealer within 30 days of the date of purchase for a full refund or replacement. To obtain this 30-Day Refund or Replacement, your return must be accompanied by the original receipt for purchase of the laser or optical instrument product. A maximum of 2 returns per customer will be permitted.