The Spectra GL412N-14-NR is a professional single slope grade laser engineered for contractors who need accurate, repeatable grade references on demanding job sites. Packaged with the CR700 machine-control-ready receiver, this kit gives you everything required to set grade for foundations, drainage systems, parking lots, and roadbed prep — right out of the case. With a ±10% grade range, automatic self-leveling, and rugged field-ready construction, the GL412N-14-NR earns its place on serious job sites.
Overview & Jobsite Applications
Single slope lasers are the go-to tool when you need to establish a consistent grade along one axis across an entire site. The GL412N-14-NR projects a red beam rotating at up to 600 RPM, giving you a fast, stable reference that works efficiently in tandem with the CR700 receiver. Whether you're directing a scraper, grader, or finishing crew, the laser keeps everyone on grade without constant instrument checks. The rechargeable battery system reduces operating cost and downtime, and the tool's wide operating range means fewer instrument moves across large pads.
Key Specifications
- Model: Spectra GL412N-14-NR
- Laser Type: Single slope (one-axis grade)
- Beam Color: Red
- Grade Range: 0% to ±10%
- Grade Accuracy: ±1.5mm at 30m (±1/16" at 100 ft)
- Self-Leveling Range: ±5°
- Working Range: Up to 800m diameter with receiver
- Rotation Speed: 150, 300, 600 RPM selectable
- Power: Rechargeable NiMH battery pack (14-hour runtime)
- IP Rating: IP66 — dustproof and waterproof
- Receiver Included: CR700
- Operating Temperature: -20°C to +50°C (-4°F to 122°F)
What's in the Kit
- Spectra GL412N-14-NR single slope grade laser
- CR700 laser receiver with mounting bracket and clamp
- Rechargeable NiMH battery pack
- 110/220V AC charger
- Hard-shell carrying case
- User documentation and quick-start guide
Job Applications
Drainage & Stormwater Layout: Set consistent positive drainage slopes across parking lots, athletic fields, and commercial pads. The GL412N-14-NR's fine grade increments let you dial in ADA-compliant and engineering-spec slopes without manual calculations at each stake.
Road Base & Subgrade Preparation: Use with a motor grader or skid steer blade to establish uniform crown or cross-slope on road base layers. The CR700 receiver mounts directly to grade rods or machine masts for machine-guided cutting.
Foundation & Concrete Flatwork: Whether you're setting footing elevation or finishing a slab, the rotating beam gives every crew member on site a common grade reference — eliminating back-and-forth to a benchmark and speeding up form setting.
Landscape Grading & Retention: Landscape contractors use the GL412N-14-NR for sloped lawn grading, retaining wall footings, and drainage swale layout — anywhere a clean, visible grade reference replaces repeated laser level setups.
Compatible Accessories
- Spectra CR700 Replacement Receiver
- Spectra HL760 Heavy-Duty Receiver (Machine Control)
- Tripod with Laser Mounting Bracket
- Spectra NiMH Replacement Battery Pack
- Grade Rod with Receiver Clamp
- Protective Laser Carrying Case
Related Guides
- How to Set Grade with a Single Slope Laser — Contractor's Guide
- GL412N vs GL422N: Which Spectra Grade Laser Is Right for Your Job?
- Using the CR700 Receiver for Machine Grading
- Red Beam vs Green Beam Lasers: What Contractors Need to Know
Frequently Asked Questions
- Does the GL412N-14-NR work for two-axis (dual slope) grading?
- No — the GL412N-14-NR is a single slope laser, meaning it grades along one axis only. If your project requires simultaneous X and Y axis grade control (such as complex drainage pads or crowned roads), consider the Spectra GL422N dual slope laser instead.
- What is the working range of the GL412N with the CR700 receiver?
- With the CR700 receiver, the working range extends up to 800 meters in diameter (400m radius). This is more than sufficient for most commercial site work, road base grading, and large concrete pads without moving the instrument.
- Can the CR700 receiver be used for machine control applications?
- Yes. The CR700 is machine-control ready and can be mounted to a grader, dozer blade, or scraper mast bracket using standard receiver hardware. It provides audio and visual on-grade indication for both manual and semi-automated grade control.
- How long does the battery last on a full charge?
- The included rechargeable NiMH battery pack delivers approximately 14 hours of continuous operation on a full charge. The charger accepts 110/220V AC, making it easy to top off overnight at the shop or from a job site generator.
Frequently Asked Questions
Does the GL412N-14-NR work for two-axis (dual slope) grading?
No — the GL412N-14-NR is a single slope laser, meaning it grades along one axis only. If your project requires simultaneous X and Y axis grade control (such as complex drainage pads or crowned roads), consider the Spectra GL422N dual slope laser instead.
What is the working range of the GL412N with the CR700 receiver?
With the CR700 receiver, the working range extends up to 800 meters in diameter (400m radius). This is more than sufficient for most commercial site work, road base grading, and large concrete pads without moving the instrument.
Can the CR700 receiver be used for machine control applications?
Yes. The CR700 is machine-control ready and can be mounted to a grader, dozer blade, or scraper mast bracket using standard receiver hardware. It provides audio and visual on-grade indication for both manual and semi-automated grade control.
How long does the battery last on a full charge?
The included rechargeable NiMH battery pack delivers approximately 14 hours of continuous operation on a full charge. The charger accepts 110/220V AC, making it easy to top off overnight at the shop or from a job site generator.
