The Spectra Precision LL300N-X2 is a contractor-grade rotary laser kit built for crews who need dependable single-grade performance on demanding job sites. Combining the field-proven LL300N laser head with an inches-graduated grade rod and a heavy-duty HD tripod, this package gives you everything required to hit the ground running on grading, drainage, and foundation layout work. Whether you're setting cut-and-fill stakes on a commercial pad or fine-grading for a residential slab, the LL300N-X2 delivers the accuracy and durability that professional contractors rely on every day.
Built for Real Job Sites
The LL300N-X2 is at home on a wide range of civil and residential construction tasks. Its 300-meter operating range covers large pads, parking lots, and open grading areas without repositioning. The automatic self-leveling system compensates within a 15-meter range on most uneven ground, getting you set up fast even when terrain is less than ideal. The rugged housing is designed to withstand the vibration, dust, and moisture exposure that come standard on any active site. Because this kit ships with an inches-graduated rod, it integrates directly into imperial workflows without any unit conversion—ideal for U.S.-based crews working in feet and inches.
Key Specifications
- Model: Spectra Precision LL300N-X2
- Operating Range: 300 meters (diameter) in clear conditions
- Self-Leveling Range: ±15 arc minutes (approximately 4.4 meters per 100 meters)
- Accuracy: ±1/8 inch at 100 feet (±3 mm at 30 m)
- Rotation Speed: 150, 300, or 600 RPM selectable
- Laser Class: Class II (635 nm visible red diode)
- Battery Life: Up to 100 hours on D-cell batteries
- IP Rating: IP66 — dust-tight and water-resistant
- Operating Temperature: -20°C to +50°C (-4°F to +122°F)
- Kit Includes: LL300N laser head, HD heavy-duty tripod, inches-graduated grade rod
What's in the Kit
- LL300N Rotary Laser Head: Self-leveling single-grade rotary laser with selectable spin speeds and long battery life
- Heavy-Duty HD Tripod: Sturdy aluminum tripod with wide leg spread for stable setup on soft or uneven ground
- Inches-Graduated Grade Rod: Imperial-measurement rod for direct reading in feet and inches—no conversion required
- Battery Compartment: Standard D-cell batteries for easy field replacement without proprietary packs
- Carrying Case: Protective storage case keeps components organized and protected during transport
Job Site Applications
- Site Grading and Earthwork: Set and verify cut-and-fill elevations across large commercial and residential pads with a single instrument setup
- Foundation Layout: Establish consistent reference elevations for footings, stem walls, and slabs to hit ±1/8" tolerances required by most specs
- Drainage and Slope Work: Dial in positive drainage grades on parking lots, driveways, and retention areas where standing water is a code or warranty concern
- Utility and Pipeline Grade: Provide elevation control for trenching crews installing gravity-flow drainage or sewer lines requiring consistent slope
Compatible Accessories
- Spectra Precision HR320 Laser Detector — Extends working range and enables outdoor use in bright conditions
- Spectra Precision HL760 Laser Detector — Digital grade display for machine control and grade checking on the rod
- Spectra Precision CR600 Remote Control — Wireless remote for rotating and stopping the beam without returning to the instrument
- Replacement D-Cell Battery Pack — Keep spares on hand for uninterrupted all-day operation
- Spectra Precision Carrying Case — Replacement or additional protective transport case
Frequently Asked Questions
- Does the LL300N-X2 work outdoors in direct sunlight?
- The LL300N uses a visible red beam, which can be difficult to see with the naked eye in bright sunlight. For outdoor use, pair it with a compatible laser detector such as the Spectra HR320 or HL760, which picks up the beam at full operating range regardless of ambient light conditions.
- Can I use the LL300N-X2 for slope or grade work?
- The LL300N is a single-grade laser, meaning the beam rotates on a self-leveled horizontal plane. It does not project a sloped plane natively. For applications requiring a set percentage grade (such as a pitched parking lot or sloped slab), you would need a dual-grade laser such as the Spectra LL500.
- What batteries does the LL300N use, and how long do they last?
- The LL300N runs on standard D-cell batteries, which are available at any hardware or big-box store—no proprietary packs required. Battery life is rated at up to 100 hours under normal operating conditions, making this one of the longest-running rotary lasers in its class.
- Is the LL300N-X2 covered by a warranty?
- Spectra Precision backs the LL300N with a standard manufacturer's warranty covering defects in materials and workmanship. As an authorized Spectra Precision dealer, Express Tools supports warranty claims and service coordination. Contact our team for current warranty terms and service center information.
Frequently Asked Questions
Does the LL300N-X2 work outdoors in direct sunlight?
The LL300N uses a visible red beam, which can be difficult to see with the naked eye in bright sunlight. For outdoor use, pair it with a compatible laser detector such as the Spectra HR320 or HL760, which picks up the beam at full operating range regardless of ambient light conditions.
Can I use the LL300N-X2 for slope or grade work?
The LL300N is a single-grade laser, meaning the beam rotates on a self-leveled horizontal plane. It does not project a sloped plane natively. For applications requiring a set percentage grade such as a pitched parking lot or sloped slab, you would need a dual-grade laser such as the Spectra LL500.
What batteries does the LL300N use, and how long do they last?
The LL300N runs on standard D-cell batteries, which are available at any hardware or big-box store—no proprietary packs required. Battery life is rated at up to 100 hours under normal operating conditions, making this one of the longest-running rotary lasers in its class.
Is the LL300N-X2 covered by a warranty?
Spectra Precision backs the LL300N with a standard manufacturer's warranty covering defects in materials and workmanship. As an authorized Spectra Precision dealer, Express Tools supports warranty claims and service coordination. Contact our team for current warranty terms and service center information.
