When your grading and excavation work demands decimal-foot precision, the Spectra Precision LL300N-1-PROMAG Laser Package is built for the job. This factory-integrated system combines the LL300N-1 dual-grade rotary laser with a CR700 digital grade receiver, RC703 wireless remote control, tenths-graduated grade rod, and a magnetic mount tripod—delivering everything a crew needs to establish, monitor, and verify elevation control on professional job sites. Whether you're cutting a pad, grading a parking lot, or shooting drainage slopes, this kit is dialed in for decimal-foot workflows right out of the box.
Overview & Jobsite Applications
The LL300N-1-PROMAG is engineered for contractors who work in decimal-foot environments—civil grading, site development, excavation, and utility layout. The LL300N-1 laser spins a 635nm red beam with a self-leveling range of ±5° and delivers dual-axis grade capability, allowing you to set independent X and Y slopes simultaneously. The CR700 receiver picks up the beam at distances up to 2,000 feet in diameter under normal conditions, with a clear numeric display so rod men can read cut and fill instantly without calling back to the instrument. The RC703 remote lets the operator adjust grade and elevation from anywhere on the site—no walking back to the tripod between setups. The tenths rod and magnetic tripod complete a system that steps onto the job site ready to work.
Key Specifications
- Model: Spectra Precision LL300N-1-PROMAG
- Laser Class: Class IIIa / Class 3R, 635nm Red Beam
- Self-Leveling Range: ±5° automatic compensator
- Grade Range: ±10% on both X and Y axes simultaneously
- Grade Accuracy: ±1.5 arc seconds (±0.5mm/m)
- Working Diameter: Up to 2,000 ft (610m) with CR700 receiver
- Rotation Speed: 150, 300, or 600 RPM selectable
- Power Source: Rechargeable Lithium-Ion battery pack
- Battery Life: Up to 40 hours per charge
- IP Rating: Dustproof and water-resistant for all-weather operation
- Receiver: CR700 digital grade receiver with numeric display
- Remote Control: RC703 wireless remote, operates up to 300 ft
- Grade Rod: Tenths-graduated (decimal-foot) grade rod included
- Tripod: Magnetic mount tripod included
What's in the Kit
- Spectra Precision LL300N-1 Dual-Grade Rotary Laser
- CR700 Digital Grade Receiver with numeric cut/fill display
- RC703 Wireless Remote Control
- Tenths-Graduated (Decimal-Foot) Grade Rod
- Magnetic Mount Tripod
- Rechargeable Li-Ion Battery Pack & Charger
- Carrying Case
- Operator's Manual
Job Site Applications
Site Grading & Earthwork: Set dual-axis grade on cut-and-fill operations across large pads. The RC703 remote lets the grade setter adjust slope percentages without leaving the machine, keeping dozers and scrapers moving.
Parking Lot & Pavement Layout: Decimal-foot grading is standard in paving and flatwork. The tenths rod allows crews to verify elevations in the same units shown on civil drawings, reducing conversion errors during sub-base prep and finish grading.
Drainage & Utility Slope Control: Establish precise fall on storm drain lines, swales, and detention basin floors. The LL300N-1's dual-grade capability lets you independently control cross-slope and longitudinal slope on the same setup.
Foundation & Building Pad Excavation: Use the CR700 receiver on the grade rod to confirm cut depths and bottom-of-footing elevations across large excavations, maintaining consistent control across the full working diameter of the instrument.
Compatible Accessories
Frequently Asked Questions
- Can the LL300N-1 set two different grades at the same time?
- Yes. The LL300N-1 features independent dual-axis grade control, allowing you to dial in separate slope percentages on the X and Y axes simultaneously—ideal for crowned surfaces, parking lots with cross-fall, or drainage structures requiring compound slopes.
- What is the advantage of the tenths grade rod included in this package?
- The tenths-graduated rod reads in decimal feet, which matches the units used on most civil engineering drawings and site plans. This eliminates the need to convert between fractions and decimals in the field, reducing errors and speeding up grade verification.
- How far away can the RC703 remote control operate?
- The RC703 wireless remote is rated for operation up to approximately 300 feet (90 meters) from the instrument under typical job site conditions, allowing a single operator to adjust elevation and grade settings from the rod location without returning to the tripod.
- Is the LL300N-1-PROMAG package covered by a manufacturer warranty?
- As an authorized Spectra Precision dealer, Express Tools sells the LL300N-1-PROMAG as a factory-integrated kit backed by Spectra Precision's standard manufacturer warranty. Contact our team for current warranty terms or to register your instrument after purchase.
Frequently Asked Questions
Can the LL300N-1 set two different grades at the same time?
Yes. The LL300N-1 features independent dual-axis grade control, allowing you to dial in separate slope percentages on the X and Y axes simultaneously—ideal for crowned surfaces, parking lots with cross-fall, or drainage structures requiring compound slopes.
What is the advantage of the tenths grade rod included in this package?
The tenths-graduated rod reads in decimal feet, which matches the units used on most civil engineering drawings and site plans. This eliminates the need to convert between fractions and decimals in the field, reducing errors and speeding up grade verification.
How far away can the RC703 remote control operate?
The RC703 wireless remote is rated for operation up to approximately 300 feet (90 meters) from the instrument under typical job site conditions, allowing a single operator to adjust elevation and grade settings from the rod location without returning to the tripod.
Is the LL300N-1-PROMAG package covered by a manufacturer warranty?
As an authorized Spectra Precision dealer, Express Tools sells the LL300N-1-PROMAG as a factory-integrated kit backed by Spectra Precision's standard manufacturer warranty. Contact our team for current warranty terms or to register your instrument after purchase.
