The Bosch 18V Green Beam Horizontal Vertical Rotary Laser Kit GRL18V-34K is fully laid out against a white background. This complete construction grading transit tool kit includes the green beam rotary laser unit, an 18V Core lithium-ion battery pack, a desktop fast battery charger, an alkaline battery adapter, an LR20 laser receiver, a heavy-duty aluminum tripod stand, and a telescoping grade rod.
An infographic diagram highlighting the primary design features of the Bosch green beam rotary laser unit over a dark blue background. Connecting indicators detail its horizontal and vertical leveling capabilities, an IP66 water and dust protection rating, Bluetooth connectivity, a simple one-button operational interface, a dial-in slope up to ±15%, and power flexibility supporting either 18V or C-cell battery options.
A direct front view of the Bosch GRL18V-34K self-leveling cordless rotary laser standing upright. The layout highlights the green cage housing the laser diode, the digital human-machine interface screen, and an open lower battery port displaying an installed 18V lithium-ion battery pack.
A product graphic of the Bosch 18V cordless transit tool showing an illuminated green beam graphic projecting a full 360-degree horizontal leveling plane and a single vertical plumb line upward from the top of the rotating laser head.
An outdoor action shot shows the aluminum building tripod stand tipped over sideways, sending the attached Bosch rotary laser crashing into a muddy water puddle on an earthmoving construction site. Graphic banner text below emphasizes that the tool is job-site tough and IP66 rated for dust-tight and water resistance.
A surveyor wearing rugged work gloves prepares the Bosch self-leveling transit tool on an active dirt construction site. The user chooses between power options, with an open alkaline battery adapter cartridge and an 18V lithium-ion battery pack resting side-by-side on a wooden plank.
A close-up view of a site technician in black protective gloves adjusting slope properties on the digital interface panel of the tripod-mounted Bosch rotary laser. Large overlay text below highlights the intuitive single dial-in slope human-machine interface with its bi-color LED display.
A blue promotional factory warranty graphic for the Bosch Measuring and Layout Tools lineup. The clean corporate block lists a standard 1-year tool warranty along with a bonus plus 1-year extension when the purchaser registers the cordless transit level within eight weeks of purchase.
New Bosch Rotary Lasers | Bosch WOC 2026 promotional video
The Bosch 18V Green Beam Horizontal Vertical Rotary Laser Kit GRL18V-34K is fully laid out against a white background. This complete construction grading transit tool kit includes the green beam rotary laser unit, an 18V Core lithium-ion battery pack, a desktop fast battery charger, an alkaline battery adapter, an LR20 laser receiver, a heavy-duty aluminum tripod stand, and a telescoping grade rod.
An infographic diagram highlighting the primary design features of the Bosch green beam rotary laser unit over a dark blue background. Connecting indicators detail its horizontal and vertical leveling capabilities, an IP66 water and dust protection rating, Bluetooth connectivity, a simple one-button operational interface, a dial-in slope up to ±15%, and power flexibility supporting either 18V or C-cell battery options.
A direct front view of the Bosch GRL18V-34K self-leveling cordless rotary laser standing upright. The layout highlights the green cage housing the laser diode, the digital human-machine interface screen, and an open lower battery port displaying an installed 18V lithium-ion battery pack.
A product graphic of the Bosch 18V cordless transit tool showing an illuminated green beam graphic projecting a full 360-degree horizontal leveling plane and a single vertical plumb line upward from the top of the rotating laser head.
An outdoor action shot shows the aluminum building tripod stand tipped over sideways, sending the attached Bosch rotary laser crashing into a muddy water puddle on an earthmoving construction site. Graphic banner text below emphasizes that the tool is job-site tough and IP66 rated for dust-tight and water resistance.
A surveyor wearing rugged work gloves prepares the Bosch self-leveling transit tool on an active dirt construction site. The user chooses between power options, with an open alkaline battery adapter cartridge and an 18V lithium-ion battery pack resting side-by-side on a wooden plank.
A close-up view of a site technician in black protective gloves adjusting slope properties on the digital interface panel of the tripod-mounted Bosch rotary laser. Large overlay text below highlights the intuitive single dial-in slope human-machine interface with its bi-color LED display.
A blue promotional factory warranty graphic for the Bosch Measuring and Layout Tools lineup. The clean corporate block lists a standard 1-year tool warranty along with a bonus plus 1-year extension when the purchaser registers the cordless transit level within eight weeks of purchase.
New Bosch Rotary Lasers | Bosch WOC 2026 promotional video
BOSCH

Bosch Rotary Laser GRL18V-34K 18V Green Beam Horizontal Vertical Kit (1500 Ft Range 1/16 In Accuracy IP66 Bluetooth Slope Grading Transit Tool)

Only 3 left
SKU: GRL18V-34K
$1,499.00 USD

Description

Bosch Promtional Logo Logout

Bosch GRL18V-34K 18V Green Beam Horizontal Vertical Self-Leveling Rotary Laser Kit

The Bosch GRL18V-34K 18V Green-Beam Horizontal/Vertical Rotary Laser Kit functions as a high-precision self-leveling layout and transit power tool engineered for outdoor site grading, driveway sloping, and structural concrete formwork alignment. Powered by an 18V 4.0Ah lithium-ion battery or C alkaline adapter, this green-beam rotary laser delivers up to 1,500 feet of operating range with the included LR20 receiver, ±1/16-inch accuracy at 100 feet, a ±15% Y-axis dial-in slope capability, and an IP66 water-resistant composite housing. Equipped with Bluetooth smartphone connectivity, a 5-foot tip-over drop resistance, a 13-foot grade rod, and a heavy-duty aluminum tripod, this rotary transit system establishes precise elevations across civil engineering and excavation sites.

Best Used For:

  • Civil Earthmoving & Trench Drainage Grading: Dialing in precise ±15% Y-axis slope angles for driveways, access ramps, retention basins, and pipe trenching lines.
  • Concrete Formwork & Slab Leveling: Setting flat elevation lines and squaring foundation footings across expansive commercial building pads using green-beam visibility.
  • Vertical Wall & Steel Column Alignment: Orienting the laser vertically to align curtain wall tracks, structural steel columns, and tilt-up concrete panels.

Key Performance & Safety Features

  • Ultra-Bright Green Beam Technology: High-visibility green laser diode provides high line clarity up to four times brighter than standard red beams for extended working ranges.
  • Precision Y-Axis Slope Grading: Dial-in slope control features a ±15% Y-axis adjustment range to streamline drainage, ramp, and driveway excavation work.
  • Bluetooth Smartphone App Control: Wirelessly pairs with the free Bosch Leveling Remote App to adjust rotation speed, sweep angles, and slope settings remotely.
  • IP66 Water-Resistant & Tip-Over Resistant: Sealed composite chassis carries an IP66 dust-tight rating and survives a 5-foot tripod tip-over onto dirt or concrete.
  • Rapid ±15% Self-Leveling Range: Fast electronic self-leveling mechanism compensates for uneven ground instantly to minimize calibration errors.
  • Dual-Source Power System Architecture: Runs on the included 18V 4.0Ah battery or standard C alkaline batteries using the included BA18-C adapter.

What's Included

  • (1) GRL18V-4-34CVG Green-Beam Rotary Laser
  • (1) EXBA18V-40 18V 4.0Ah Lithium-Ion Battery
  • (1) GAL18V-40 Fast Battery Charger
  • (1) BA18-C Alkaline Battery Adapter
  • (1) LR20 Heavy-Duty Laser Receiver
  • (1) BT170HD Heavy-Duty Aluminum Building Tripod
  • (1) GR13 13-Foot Telescoping Aluminum Grade Rod
  • (1) Rugged Impact-Resistant Plastic Carrying Case

Technical Specifications

Brand Manufacturer Bosch
Model Designation OEM SKU GRL18V-34K
Laser Beam Color & Diode Green Beam (Class 3R <5mW at 630-670nm)
Laser Orientation Capabilities Horizontal and Vertical (H/V) Dual Axis
Working Range with LR20 Receiver 1,500 ft. Standard (Up to 2,000 ft. Operational)
Horizontal Leveling Accuracy ±1/16 in. at 100 ft. (±1.5 mm at 30 m)
Vertical Leveling Accuracy ±1/8 in. at 100 ft. (±3.0 mm at 30 m)
Self-Leveling & Dial-In Slope Range ±15% Slope (Self-Leveling up to 5°)
Environmental Ingress Protection Rating IP66 (Dust-Tight & Heavy Water Jet Resistant)
Wireless Smartphone Control Interface Bluetooth Connectivity (Bosch Leveling Remote App)
Tripod Mounting Interface 5/8 in. - 11 UNC Standard Threading
Operating Temperature Range 14°F to 122°F (-10°C to 50°C)
Tool Structural Dimensions 7.0 in. L x 6.7 in. W x 7.5 in. H
Bare Tool Net Weight 3.9 lbs. (1.77 kg)

Pro-Tip: When grading long driveways or pipe trenches in full sunlight, mount the LR20 receiver to the 13-foot aluminum grade rod and utilize the Bosch Leveling Remote App on your smartphone to adjust the Y-axis slope remotely. This enables a single user to verify slope elevations without walking back and forth to the laser unit.