Bosch GLL 3-80 laser level projecting three 360-degree red laser lines forming a grid. The device has a robust black and blue casing and is designed for multi-plane alignment in construction and carpentry.
Feature diagram of Bosch laser level showing red laser beams and labeled specifications: 200 ft visibility, receiver mode, IP54 protection, 360° chalk lines, smart pendulum leveling, and VISIMAX™ technology.
Close-up of Bosch GLL3-300 laser level showing three laser windows for 360-degree coverage. Features include a red “Off/On” switch with lock icon and rugged casing for professional-grade durability
Worker applying green tape along a red laser line projected by a Bosch laser level mounted on a stand. The scene includes painting supplies, emphasizing the tool’s use in layout and alignment for renovation.
Bosch GLL 3-80 laser level emitting a red horizontal beam across a construction space. A person in the background uses a power drill, highlighting the tool’s role in precise alignment during active work.
Bosch laser level projecting intersecting red horizontal and vertical lines. A worker in the background uses the alignment for installation tasks. The device is mounted for stability on a wooden surface.
Bosch laser level placed on a wooden surface projecting a red horizontal line across a room. A person uses a square tool to align cabinetry, showcasing the tool’s precision in interior renovation.
Construction worker in safety gear adjusting ceiling fixtures while a Bosch laser level projects a red alignment line. The device is mounted on a vertical pole, aiding precise installation of pipes and conduits.
Bosch laser level mounted on a tripod projecting a red laser line across a ceiling and floor in a modern construction setting. A worker on a ladder aligns fixtures along the beam, demonstrating full-room layout capabilities.
Bosch GLL 3-80 laser level projecting three 360-degree red laser lines forming a grid. The device has a robust black and blue casing and is designed for multi-plane alignment in construction and carpentry.
Feature diagram of Bosch laser level showing red laser beams and labeled specifications: 200 ft visibility, receiver mode, IP54 protection, 360° chalk lines, smart pendulum leveling, and VISIMAX™ technology.
Close-up of Bosch GLL3-300 laser level showing three laser windows for 360-degree coverage. Features include a red “Off/On” switch with lock icon and rugged casing for professional-grade durability
Worker applying green tape along a red laser line projected by a Bosch laser level mounted on a stand. The scene includes painting supplies, emphasizing the tool’s use in layout and alignment for renovation.
Bosch GLL 3-80 laser level emitting a red horizontal beam across a construction space. A person in the background uses a power drill, highlighting the tool’s role in precise alignment during active work.
Bosch laser level projecting intersecting red horizontal and vertical lines. A worker in the background uses the alignment for installation tasks. The device is mounted for stability on a wooden surface.
Bosch laser level placed on a wooden surface projecting a red horizontal line across a room. A person uses a square tool to align cabinetry, showcasing the tool’s precision in interior renovation.
Construction worker in safety gear adjusting ceiling fixtures while a Bosch laser level projects a red alignment line. The device is mounted on a vertical pole, aiding precise installation of pipes and conduits.
Bosch laser level mounted on a tripod projecting a red laser line across a ceiling and floor in a modern construction setting. A worker on a ladder aligns fixtures along the beam, demonstrating full-room layout capabilities.
BOSCH

Bosch 3-Plane Laser Level GLL3-300 360 Degree Self-Leveling (300 Foot Pulse Mode VisiMax 4 AA Batteries BM1 Positioning Mount Red Target Hard Case)

In stock
SKU: GLL3-300
$389.99 USD

Description

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Bosch GLL3-300 360-Degree Three-Plane Self-Leveling Line Laser Level Kit

The Bosch GLL3-300 360-degree three-plane line laser level projects one horizontal and two vertical chalk-line laser planes at 90-degree intersections to level, align, plumb, and square full-room interiors from a single setup position. Delivering ±3/32-inch accuracy at 30 feet, this optical layout instrument utilizes intelligent VisiMax technology to actively monitor diode temperature and current, maximizing bright red beam clarity while extending battery runtime across standard 4 AA alkaline cells. Featuring a 200-foot visible working diameter expandable to 300 feet via pulse mode receiver pairing, a Smart Pendulum self-leveling lock system, dual 1/4"-20 and 5/8"-11 tripod threads, and an IP54-rated overmolded housing, it provides drywallers, electricians, and framing contractors with an all-in-one squaring and elevation solution.

Best Used For:

  • Full-Room Framing and Wall Partition Squaring: Casting two 360-degree vertical planes at exact 90-degree angles to align bottom floor plates and plumb top studs simultaneously.
  • Acoustic Suspended Ceiling Grid Installation: Projecting a continuous 360-degree horizontal reference plane around room perimeters to set wall angle molding and main runners at uniform heights.
  • Mechanical, Electrical, and Plumbing (MEP) Alignment: Transferring plumb points and squaring long conduit runs, lighting fixtures, and pipe brackets across floors, walls, and ceiling decks.

Key Performance & Safety Features

  • Three 360-Degree Laser Planes: Emits one horizontal and two vertical 360-degree laser chalk lines to allow level, plumb, and 90-degree squaring across an entire room without moving the tool.
  • VisiMax Intelligent Power Management: Continuously optimizes diode output and thermal balance to produce maximum line brightness and prolong battery life.
  • Pulse Mode Range Extension: Extends operational working diameter up to 300 feet in bright ambient light when paired with an optional Bosch LR8 or LR6 laser receiver.
  • Smart Pendulum Self-Leveling System: Automatically self-levels within ±4 degrees, flashes to indicate out-of-level placement, and locks the pendulum securely for transit.
  • Manual Incline Angle Mode: Locks internal pendulum optics to project non-level diagonal reference lines for staircase railings, sloped drainage piping, and custom roof accents.
  • BM1 Versatile Positioning Device: Features microfine height adjustments, retractable floor stand feet, strong mounting magnets, and a ceiling grid clip for fast structural mounting.

What's Included

  • (1) Bosch GLL3-300 360° 3-Plane Self-Leveling Line Laser
  • (1) Bosch BM1 Positioning Device with Ceiling Grid Clip
  • (1) Red Laser Target Plate
  • (1) Heavy-Duty Molded Hard Carrying Storage Case
  • (4) 1.5V AA Alkaline Batteries

Technical Specifications

Manufacturer Bosch Measuring Tools
Model Number GLL3-300
Product Category 360° Three-Plane Alignment Line Laser
Leveling Accuracy (SAE) ±3/32 inch at 30 feet (±0.8 mm per meter)
Visible Working Range Up to 200 feet (60.96 m) Diameter
Pulse Mode Receiver Range Up to 300 feet (91.44 m) Diameter (with LR8/LR6 Receiver)
Self-Leveling Capability Range Up to ±4.0 Degrees Automatic Leveling
Laser Diode Specifications Class 2 (630 nm to 650 nm Red Diode, < 1mW)
Tripod Mounting Interface Threads 1/4"-20 & 5/8"-11 Standard UNC Threads
Environmental Ingress Protection IP54 Dust & Water-Splash Resistant
Tool Net Weight 1.80 lbs (28.8 oz / 0.82 kg)
Power Supply System (4) 1.5V AA Alkaline Cells

Pro-Tip: Use the microfine knob on the included BM1 mount to adjust laser plane height in tiny increments, allowing you to align horizontal beams perfectly with wall-track pencil marks without shifting the main base.