The Leica Rugby 640G (SKU: 6011486) is a professional-grade green beam rotary laser engineered for demanding interior and exterior construction applications. Pairing a high-visibility green beam with the included RE120G digital receiver, this unit delivers ±3/32" accuracy at 100 ft and an operating range of up to 1,300 feet in diameter with the receiver — giving large crews the coverage they need without repositioning. Whether you're leveling concrete slabs, grading a site, or plumbing walls across a multi-story structure, the Rugby 640G is built for the rigors of daily jobsite use.
Overview & Jobsite Applications
Designed for contractors who can't afford downtime, the Rugby 640G combines Leica's proven rotary laser platform with green beam diode technology that produces a beam up to four times brighter than comparable red lasers. The instrument operates across interior finish work, exterior site preparation, foundation layout, and utility trenching — all from a single, self-leveling unit. Its compact, rubber-armored housing handles drops, dust, and full water immersion (IP67), while the wide automatic self-leveling range of ±5° gets you set up fast on uneven terrain.
Key Specifications
- Model / SKU: Rugby 640G / 6011486
- Beam Color: Green (520 nm)
- Accuracy: ±3/32" (±2.4 mm) at 100 ft
- Operating Range (with RE120G receiver): 1,300 ft diameter (650 ft radius)
- Visible Range (unaided eye): Up to 200 ft in typical conditions
- Self-Leveling Range: ±5°
- Rotation Speed: 150 / 300 / 600 RPM (selectable)
- IP Rating: IP67 (dust-tight, submersible to 1 m)
- Battery Life: Up to 30 hours (4 × AA alkaline)
- Operating Temperature: -4°F to +122°F (-20°C to +50°C)
- Weight: Approx. 4.4 lbs (2.0 kg) with batteries
- Included Receiver: RE120G digital grade receiver
Key Features & What's in the Kit
- Green Beam Advantage: 4× brighter than red beam lasers for unaided visibility in bright sunlight
- RE120G Receiver Included: Digital grade display with audible and visual grade indication
- Automatic Self-Leveling: Wide ±5° compensator range for fast setup on rough ground
- Out-of-Level Alarm: Beam shuts off and audible alert sounds if instrument is disturbed
- Variable Rotation Speeds: Slow speed for dot visibility; high speed for finer grade work
- Remote Control Ready: Compatible with Leica RCU400 remote for full remote operation
- IP67 Rugged Housing: Rubber-armored body survives drops to 1 m and full submersion
- Long Battery Life: 30 hours on standard AA batteries; no proprietary packs required
- Kit Includes: Rugby 640G laser, RE120G receiver, receiver clamp, batteries, carrying case, and documentation
Job Applications
Site Grading & Excavation: Set a single instrument elevation and allow multiple machine operators and grade checkers to work simultaneously across the full 1,300-ft diameter — ideal for mass grading, road base prep, and drainage slope work.
Concrete Flatwork & Slabs: The ±3/32" accuracy at 100 ft keeps concrete pours within spec for floor flatness requirements. Green beam visibility lets finishers confirm elevation at the screed without stopping to check a receiver.
Structural Framing & Plumb Checks: Use the manual slope mode and reduced rotation speed for plumbing columns, aligning wall plates, and transferring elevations from floor to floor on multi-story structures.
Utility & Pipeline Trenching: Grade trenches to exact slope specifications with the RE120G receiver clamped to a grade rod, enabling a single operator to check invert elevations quickly and accurately without a second crew member.
Compatible Accessories
- Leica RCU400 Remote Control Unit — Full wireless instrument control up to 330 ft
- Leica RE180 Dual-Sided Receiver — Extended detection range for large open sites
- Leica TRI100 Tripod — Heavy-duty aluminum tripod rated for rotary laser use
- Leica GHT62 Wall Mount Bracket — Interior wall and column mounting adapter
- Replacement AA Battery Pack (4-pack) — OEM-approved batteries for full rated runtime
Related Guides
- How to Set Up a Rotary Laser for Site Grading
- Red vs. Green Beam Rotary Lasers: Which Do You Need?
- Using a Laser Receiver for Slope & Grade Work
- Leica Rugby Series Comparison: 610, 620, 640, 680
Frequently Asked Questions
- Does the Leica Rugby 640G work in manual slope mode?
- No — the Rugby 640G is a single-axis self-leveling laser without a built-in manual slope function. For dual-axis or manual grade applications, consider the Leica Rugby 680 or Rugby 840. The 640G excels at automatic level work and is optimized for speed and ease of use on flat or gently sloping sites.
- What receiver is included and can I use a different one?
- The kit ships with the RE120G digital grade receiver, which is matched to the green beam wavelength of the 640G. Red-beam receivers will not reliably detect green laser light, so it is important to use a green-compatible receiver. The Leica RE180 is an optional upgrade offering a wider detection window for longer rod heights.
- Is the Rugby 640G suitable for indoor use such as suspended ceilings or MEP work?
- Yes. The Rugby 640G's variable rotation speed (down to 150 RPM) makes the beam visible as a slow-moving dot for interior alignment tasks, including suspended ceiling grid layout, MEP hanger elevation, and door/window header leveling. The compact form factor fits standard 5/8"-11 tripod threads.
- How does the IP67 rating compare to competing lasers, and does it cover accidental drops?
- IP67 certifies the Rugby 640G as fully dust-tight and protected against temporary submersion in up to 1 meter of water for 30 minutes. Leica also rates the housing for 1-meter drop resistance onto hard surfaces. While this covers most jobsite incidents, it is not a warranty against damage — Express Tools recommends Leica's optional protection plan for high-risk environments.
Frequently Asked Questions
Does the Leica Rugby 640G work in manual slope mode?
No — the Rugby 640G is a single-axis self-leveling laser without a built-in manual slope function. For dual-axis or manual grade applications, consider the Leica Rugby 680 or Rugby 840. The 640G excels at automatic level work and is optimized for speed and ease of use on flat or gently sloping sites.
What receiver is included and can I use a different one?
The kit ships with the RE120G digital grade receiver, which is matched to the green beam wavelength of the 640G. Red-beam receivers will not reliably detect green laser light, so it is important to use a green-compatible receiver. The Leica RE180 is an optional upgrade offering a wider detection window for longer rod heights.
Is the Rugby 640G suitable for indoor use such as suspended ceilings or MEP work?
Yes. The Rugby 640G's variable rotation speed (down to 150 RPM) makes the beam visible as a slow-moving dot for interior alignment tasks, including suspended ceiling grid layout, MEP hanger elevation, and door/window header leveling. The compact form factor fits standard 5/8"-11 tripod threads.
How does the IP67 rating compare to competing lasers, and does it cover accidental drops?
IP67 certifies the Rugby 640G as fully dust-tight and protected against temporary submersion in up to 1 meter of water for 30 minutes. Leica also rates the housing for 1-meter drop resistance onto hard surfaces. While this covers most jobsite incidents, it is not a warranty against damage — Express Tools recommends Leica's optional protection plan for high-risk environments.
