The Spectra Precision GL1425C-19 is a complete dual-axis grade laser package engineered for site contractors who need accurate, repeatable slope control across complex grading operations. This ready-to-work kit pairs the powerful GL1425C laser head—featuring independent X and Y axis grade control with Bluetooth wireless connectivity—with the HL760 deluxe rod-mounted receiver, a heavy-duty elevator tripod, and a grade rod graduated in tenths. Whether you're cutting parking lot drainage planes, establishing precise subgrade on commercial pads, or running multi-directional slopes on athletic fields, this package delivers the precision and reliability professionals demand on deadline-driven sites.
Package Overview & Jobsite Applications
The GL1425C-19 package is purpose-built for contractors who regularly work on projects requiring simultaneous dual-plane slope. The GL1425C laser head self-levels and then executes user-set grade on both axes independently, eliminating the need for secondary setups or manual instrument tilting. Bluetooth connectivity allows grade adjustments from the machine cab or anywhere on the jobsite using the compatible Spectra app, reducing repositioning time and keeping crews productive. The included HL760 receiver offers a wide 12-inch detection window with numeric grade readout, making it ideal for long-range machine control and rod work alike.
Key Specifications
- Grade Range: ±10% on both X and Y axes simultaneously
- Self-Leveling Range: ±5°
- Accuracy: ±1.5mm at 30m (±1/16" at 100 ft)
- Operating Range: Up to 800m (2,600 ft) diameter with receiver
- Rotation Speed: 100–600 RPM selectable
- Connectivity: Bluetooth wireless remote grade control
- Battery Life: Up to 60 hours on alkaline batteries
- IP Rating: IP66 dust and water resistant
- Receiver: HL760 with 12-inch detection window and numeric display
- Tripod: Elevator tripod included
- Grade Rod: Tenths-graduated rod included
What's in the GL1425C-19 Kit
- Spectra Precision GL1425C dual-axis grade laser head
- HL760 deluxe rod-mounted receiver with numeric grade readout
- Elevator tripod for stable, adjustable instrument height
- Tenths-graduated grade rod for precise elevation checks
- Bluetooth remote control capability (app-compatible)
- Alkaline battery pack and carrying case
- Operator's manual and calibration documentation
Job Applications
Commercial Parking Lot Grading: Set independent cross-slope and longitudinal slope simultaneously to achieve ADA-compliant drainage planes across large paved surfaces without resetting the instrument between axes.
Athletic Field Construction: Establish precise crown or compound slopes on natural turf and synthetic field bases where drainage geometry must be consistent across the full playing surface.
Site Pad & Subgrade Work: Control subgrade elevation and slope on commercial building pads, warehouse slabs, and distribution center floors where tight tolerance is critical before concrete placement.
Multi-Plane Drainage Projects: Run dual-axis grade on retention pond berms, bio-swales, and stormwater infrastructure where both longitudinal and transverse slopes must meet engineered plan specifications.
Compatible Accessories
- Spectra HL760 Replacement Receiver
- Spectra RC802 Bluetooth Remote Control
- Heavy-Duty Machine Mounting Bracket
- Spectra Alkaline Battery Pack
- Replacement Tenths Grade Rod
- Laser Level Carrying Case & Foam Insert
Related Guides
- How to Set Dual-Axis Slope with the GL1425C
- GL1425C vs GL422 — Choosing the Right Grade Laser for Your Project
- Using Bluetooth Remote Control on Spectra Grade Lasers
- Site Grading Laser Setup: Tripod Height, Rod Work & Receiver Tips
Frequently Asked Questions
- Can the GL1425C set different slope percentages on both axes at the same time?
- Yes. The GL1425C independently controls grade on the X and Y axes simultaneously, so you can dial in, for example, a 1.5% cross-slope and a 0.8% longitudinal slope in a single instrument setup. This is the core advantage of a true dual-grade laser over single-axis tilt models.
- Does this package include everything I need to start grading on day one?
- Yes. The GL1425C-19 kit includes the laser head, HL760 rod receiver, elevator tripod, and tenths grade rod. You'll need batteries (standard alkaline D-cells), and if you want wireless Bluetooth remote control from the cab or machine, you'll need the compatible Spectra app on a supported device—no additional hardware purchase required for basic Bluetooth functionality.
- What is the working range of the HL760 receiver included in this package?
- The HL760 receiver is rated for use up to approximately 800 meters (2,600 feet) in diameter from the laser head under good atmospheric conditions. The 12-inch detection window and numeric grade readout make it well-suited for both rod-and-transit elevation checks and machine-mounted grade control on larger sites.
- Is the GL1425C-19 compatible with machine control systems or dozers?
- The GL1425C works with machine-mounted receivers like the HL760 for traditional blade control applications. For fully integrated 3D machine control systems, you would need additional components. Contact Express Tools for guidance on pairing this laser with your specific equipment setup.
Frequently Asked Questions
Can the GL1425C set different slope percentages on both axes at the same time?
Yes. The GL1425C independently controls grade on the X and Y axes simultaneously, so you can dial in, for example, a 1.5% cross-slope and a 0.8% longitudinal slope in a single instrument setup. This is the core advantage of a true dual-grade laser over single-axis tilt models.
Does this package include everything I need to start grading on day one?
Yes. The GL1425C-19 kit includes the laser head, HL760 rod receiver, elevator tripod, and tenths grade rod. You'll need batteries (standard alkaline D-cells), and if you want wireless Bluetooth remote control from the cab or machine, you'll need the compatible Spectra app on a supported device—no additional hardware purchase required for basic Bluetooth functionality.
What is the working range of the HL760 receiver included in this package?
The HL760 receiver is rated for use up to approximately 800 meters (2,600 feet) in diameter from the laser head under good atmospheric conditions. The 12-inch detection window and numeric grade readout make it well-suited for both rod-and-transit elevation checks and machine-mounted grade control on larger sites.
Is the GL1425C-19 compatible with machine control systems or dozers?
The GL1425C works with machine-mounted receivers like the HL760 for traditional blade control applications. For fully integrated 3D machine control systems, you would need additional components. Contact Express Tools for guidance on pairing this laser with your specific equipment setup.
