SitePro LM 110H Horizontal Rotary Laser

Three Simultaneous Laser Planes. Green Visibility. Built for the Interior Layout Pro.

The Bosch GLL3-330CG is a professional-grade, self-leveling 3-plane laser that projects one full 360° horizontal plane and two vertical planes simultaneously — all in high-visibility green. Whether you're laying out partition walls on a commercial floor, plumbing MEP penetrations through multiple stories, or setting ceiling grid on a large open floor plate, the GLL3-330CG eliminates the guesswork and the manual bubble level. Powered by Bosch's 12V Max Li-Ion platform, it charges fast, works all day, and integrates with tools you likely already own.

Jobsite Overview & Applications

Designed for framers, carpenters, electricians, plumbers, and finish trades working interior commercial and residential projects, the GLL3-330CG covers the full scope of layout tasks that used to require multiple setups or a helper holding a level. The self-leveling magnetic leveling compensator locks in the horizontal reference within ±3° of plumb automatically, so you spend less time setting up and more time working. The laser detector compatible output means you can extend working range to 200 ft. in bright ambient conditions when used with the optional LR6 receiver.

Key Specifications

• Laser Color: Green (4x brighter than red at distance)
• Planes: 3 simultaneous — one 360° horizontal, two vertical (front and side)
• Self-Leveling Range: ±3°
• Working Range: Up to 100 ft. (200 ft. with LR6 detector)
• Accuracy: ±1/8 in. at 33 ft.
• Battery: 12V Max Li-Ion (GBA12V20 or GBA12V30)
• Battery Runtime: Up to 14 hours (12V 2.0 Ah)
• IP Rating: IP54 dust and splash protection
• Mounting: 1/4-20 thread + 5/8-11 adapter compatible
• Weight: 2.0 lbs. (tool only)

Key Features

• Green Beam Technology: Up to 4x more visible than red beam at equivalent power, critical for well-lit interior spaces
• 360° Horizontal Plane: Full-room reference line with a single setup — no rotating required
• Dual Vertical Planes: Simultaneous front and side vertical coverage for plumb and square layout
• Smart Pendulum Lock: Protects the self-leveling mechanism during transport and activates manual slope mode
• Bluetooth Connectivity: Compatible with Bosch Leveling Remote App for remote on/off and plane selection from up to 100 ft.
• IP54 Protection: Handles jobsite dust and incidental water spray without compromising optics
• 12V Max Platform: Compatible with all Bosch 12V Max batteries — share batteries across your tool kit
• Magnetic Bracket Included: BM3 positioning device allows mounting on metal framing, pipes, and drywall track

Job Applications

Commercial Interior Framing: Project all three planes simultaneously to lay out metal stud walls across large floor plates. The 360° horizontal line lets multiple crew members work off the same reference without repositioning the tool.

MEP Rough-In Layout: Electricians and plumbers use the dual vertical planes to transfer plumb points through floors and ceilings for conduit runs, drain stacks, and sleeve penetrations — with Bluetooth control keeping the laser operator off a ladder.

Ceiling Grid Installation: Set the horizontal plane at finished ceiling height and use it as a continuous reference around the entire perimeter of the room. Works with or without a detector for grid and hanger layout.

Tile & Finish Carpentry: The precise vertical planes provide a reliable plumb reference for tile layout centerlines, cabinet runs, and door/window casing alignment on large walls where a 4-ft. level falls short.

Compatible Accessories

• Bosch LR6 Laser Receiver — Extends range to 200 ft. in bright conditions
• Bosch BM3 Positioning Device with Magnetic Base — Included in kit; also sold separately
• Bosch GBA12V20 12V Max 2.0 Ah Battery
• Bosch GAL1210CV 12V Max Charger
• Bosch TP200 Positioning Tripod with Extendable Height
• Bosch GLL3-330CG Kit (with LR6 Receiver & Carrying Case)

Related Guides

• How to Choose Between a 2-Plane and 3-Plane Laser Level
• Red vs. Green Beam Lasers: What Matters on the Jobsite
• Using a Laser Level with a Receiver: Range, Setup & Tips
• Bosch 12V Max Platform Overview: Batteries, Chargers & Compatibility

Frequently Asked Questions

Does the GLL3-330CG come with a battery and charger?

The standard GLL3-330CG tool-only configuration does not include a battery or charger. The kit version (GLL3-330CG-RT or combo kit) includes a GBA12V20 battery and GAL1210CV charger. If you already own Bosch 12V Max batteries, the tool-only is the better value. Check the listing or contact us to confirm what's included in the specific configuration you're purchasing.

Can the GLL3-330CG be used outdoors?

Yes, with limitations. The IP54 rating means it handles light rain and dust on an open jobsite. However, outdoor visibility of the green beam drops significantly in direct sunlight beyond 30–40 ft. For outdoor use, pair it with the Bosch LR6 laser receiver, which extends effective working range to 200 ft. regardless of ambient light conditions.

What is the difference between the GLL3-330CG and the GLL3-300?

The GLL3-330CG projects green laser planes, which are significantly more visible indoors than the red beam of the GLL3-300. The CG model also adds Bluetooth connectivity for remote control via the Bosch Leveling Remote App. Both share the same 3-plane layout and 12V Max battery platform, but the GLL3-330CG is the preferred choice for commercial work in well-lit interiors.

How do I use the manual slope mode on the GLL3-330CG?

Activate manual mode by engaging the pendulum lock while the tool is powered on. This disables the self-leveling compensator and allows you to manually tilt the unit to project a non-level plane — useful for stair stringers, sloped ceilings, or raked walls. The tool will not auto-level in this mode; you dial in the angle by hand using the mounting device or tripod head.