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Bosch GLL40-20G 40 foot Self Leveling Green Beam VisiMax Cross Line Laser with Smart Pendulum System, Class II laser product, <5mW power output

  • Based on 1,626 reviews
Condition: Used - Very Good
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Availability: Only 1 left in stock, order soon!
Fulfilled by US Seller/We ship from USA

Arrives Jul 23 – Aug 7
Order within 11 hours and 54 minutes
Available payment plans shown during checkout

Style: 40ft


Features

  • Class II laser product, <5mW power output

Description

The Bosch GLL40-20G Self-Leveling Cross-Line Laser projects visible green laser lines, which are up to 2X brighter than standard red beams. The tool has a working range of up to 40 feet and offers reliable accuracy of +5/16 in. at 30 feet. It features Bosch-exclusive VisiMax™ 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 MM 2 Flexible Mounting Device provides a rotating 360 degree neck for quick setup and simple fine-tuning allowing for the laser to be clamped onto virtually any surface from 1/2 to 2-1/4 inches thick.

Brand: BOSCH


Material: Plastic, Rubber


Color: Green,red


Product Dimensions: 2.3"L x 3.3"W


Style: 40ft


Brand: ‎BOSCH


Material: ‎Plastic, Rubber


Color: ‎Green,red


Product Dimensions: ‎2.3"L x 3.3"W


Style: ‎40ft


Item Weight: ‎0.5 Pounds


Operation Mode: ‎Automatic


UPC: ‎000346634792


Global Trade Identification Number: ‎92


Manufacturer: ‎BOSCH


Part Number: ‎GLL40-20G


Item Weight: ‎8 ounces


Item model number: ‎GLL40-20G


Batteries: ‎2 AA batteries required. (included)


Is Discontinued By Manufacturer: ‎No


Size: ‎No Size


Power Source: ‎Battery Powered


Voltage: ‎1.5 Volts


Item Package Quantity: ‎1


Special Features: ‎self-leveling, green-line


Included Components: ‎(1) GLL40-20G Green-Beam Self-Leveling Cross-Line Laser, (1) Mounting Device, (1) Pouch, (2) AA Batteries


Batteries Included?: ‎Yes


Batteries Required?: ‎Yes


Battery Cell Type: ‎Alkaline


Warranty Description: ‎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, call 1-877-BOSCH99


Date First Available: December 1, 2018


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Jul 23 – Aug 7

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Good for indoor/night time use
Style: 50ft
Overall worked well. I was able to use it to level a patio I was pouring. I had to set this up after the sun went down to see the beam outside, but it worked. During the day, forget about it.
Reviewed in the United States on May 5, 2025 by clifford r pool

  • Good purchase
Style: 50ft
Works great
Reviewed in the United States on May 10, 2025 by Jeffrey C. Cope

  • Bosch Digital Level – Precision and Quality at Its Best!
Style: 50ft
Why I Love It: ✅ High Accuracy: The digital display provides incredibly precise readings, making it ideal for professional and DIY projects. ✅ Easy-to-Read Display: The illuminated, large LCD screen ensures clear visibility, even in dimly lit environments. ✅ Durable and Sturdy: The rugged construction with IP-rated protection makes it resistant to dust and water. ✅ Multiple Measurement Modes: It supports various angle measurements, including degrees, percentages, and millimeters per meter. ✅ Audio Indicator for Alignment: The beep function helps when you can't keep your eyes on the display, which is a great feature for hands-free leveling. ✅ Long Battery Life: It lasts through extended use, making it reliable for both indoor and outdoor jobs. ... show more
Reviewed in the United States on February 11, 2025 by Adrian Dobrei

  • Cannot tilt angle
Style: 50ft - Rechargeable
I wish the vertical line stayed on when you tilt the laser over. May be due to the auto leveling but anything over 15 degrees of angle it makes the laser lines flash
Reviewed in the United States on January 17, 2025 by Chandler Bohlen

  • Unwavering Accuracy, Effortless Leveling
Style: 50ft
The Bosch GLL50-20G laser self-leveling tool offers pinpoint accuracy. Its bright green laser lines are exceptionally visible, even in bright light. The self-leveling function is fast and reliable, saving precious time. The robust build quality inspires confidence and ensures long-term durability. The extended range makes it perfect for large projects. It's a game-changer for any professional or serious DIY enthusiast, delivering consistent and precise results. ... show more
Reviewed in the United States on March 13, 2025 by Matt D.

  • A must for align things.
Style: 50ft
The green color makes it easier to find the laser on bright conditions. Tripod and magnetic support helps you a lot to position the device. I get a good deal while on discount so it was totally worth it.
Reviewed in the United States on February 27, 2025 by Eduardo

  • Good but …
Style: 50ft
Range isn’t as advertised. Horizontal lines are visible 10 feet only. Eats battery like crazy
Reviewed in the United States on May 4, 2025 by Gast

  • Muy bueno
Style: 50ft
Excelente, muy recomendable, es pequeño y tiene muy buen alcance!
Reviewed in the United States on March 23, 2025 by German Fernandez

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