Description

The Spectra Precision GL1425C-28 is a complete, field-ready dual-slope laser system engineered for contractors who need accurate, repeatable grade control right out of the box. This kit pairs the powerful GL1425C dual-grade rotating laser with the CR700 multi-purpose machine control receiver, a heavy-duty elevator tripod, and a calibrated grade rod—giving your crew everything needed to set grade, control slopes, and manage drainage on day one without hunting down compatible accessories.

System Overview & Jobsite Applications

The GL1425C laser head delivers independent X and Y axis grade control, making it ideal for complex site grading, drainage swales, and road crown work where a single-axis laser falls short. With a self-leveling range of ±10% and a working range of up to 2,000 feet in diameter when paired with the CR700, this system handles everything from residential lot prep to large commercial grading projects. The CR700 receiver is compatible with both manual grade rod work and machine-mounted applications, reducing the need for secondary equipment purchases. Whether your crew is grading a parking lot, setting pipe slope, or cutting a drainage channel, the GL1425C-28 kit delivers the precision and range professionals depend on.

Key Specifications

Model: Spectra Precision GL1425C-28
Laser Type: Dual-slope rotating laser level
Grade Range (X & Y Axis): ±10% independently on each axis
Grade Accuracy: ±1.5 arc seconds (±1/16" at 100 ft)
Working Diameter: Up to 2,000 ft with CR700 receiver
Self-Leveling Range: ±5°
Rotation Speed: 100, 300, or 600 RPM (selectable)
Battery Life: Up to 90 hours (4 x D-cell alkaline)
IP Rating: IP66 — dust-tight and water-resistant
Receiver Included: Spectra CR700 multi-use laser receiver
Detection Resolution: 1.0 mm (CR700)
Kit Includes: GL1425C laser, CR700 receiver, elevator tripod, grade rod (inch scale), carrying case

What's in the Kit

GL1425C Dual-Slope Laser: Independent X/Y axis grade control with digital grade readout and remote-compatible design
CR700 Laser Receiver: Wide 11-inch detection window, audible and visual grade indicators, compatible with grade rod and machine mounting brackets
Elevator Tripod: Heavy-duty aluminum elevator tripod for fast, stable instrument setup at variable heights
Grade Rod (Inch Scale): Calibrated rod for direct elevation and slope readings in the field
Carrying Case: Rugged transport case to protect components on the jobsite

Job Applications

Site Grading & Earthwork: Set dual-axis slopes across large sites to control drainage direction and meet civil plan requirements with sub-inch precision over extended distances.

Parking Lot & Flatwork Drainage: Establish consistent cross-slopes and longitudinal grades to meet ADA drainage requirements and prevent ponding on commercial flatwork projects.

Pipe Laying & Utility Trenching: Use the CR700 on a grade rod to monitor invert elevation and maintain consistent pipe fall throughout sewer, storm drain, and utility installations.

Road Crown & Subgrade Control: Apply independent X and Y axis grades simultaneously to replicate road crown profiles or complex subgrade geometry on roadway construction projects.

Compatible Accessories

Related Guides

Frequently Asked Questions

Can the GL1425C-28 kit be used for machine control applications?: The CR700 receiver included in this kit supports machine mounting via a compatible bracket, making it suitable for basic machine control applications such as grading with a motor grader or skid steer. For advanced GPS or 3D machine control integration, additional hardware may be required.
Does the GL1425C support remote control operation?: Yes. The GL1425C is compatible with the Spectra RC703 remote control (sold separately), which allows one-person operation for adjusting grade settings from the rod location without returning to the instrument.
What is the difference between the GL1425C-28 and the GL1425C-26 kit?: The primary difference between kit configurations is the accessories included. The GL1425C-28 includes the CR700 receiver, elevator tripod, and grade rod with inch scale. Other kit variants may substitute a different tripod, rod scale, or omit certain components. The laser instrument itself is identical across kits.
Is the GL1425C-28 covered under a manufacturer warranty?: Yes. Spectra Precision provides a limited manufacturer warranty covering defects in materials and workmanship. Express Tools is an authorized dealer, ensuring your purchase qualifies for full warranty support. Contact us for current warranty terms or to initiate a service request.

Frequently Asked Questions

Can the GL1425C-28 kit be used for machine control applications?

The CR700 receiver included in this kit supports machine mounting via a compatible bracket, making it suitable for basic machine control applications such as grading with a motor grader or skid steer. For advanced GPS or 3D machine control integration, additional hardware may be required.

Does the GL1425C support remote control operation?

Yes. The GL1425C is compatible with the Spectra RC703 remote control (sold separately), which allows one-person operation for adjusting grade settings from the rod location without returning to the instrument.

What is the difference between the GL1425C-28 and the GL1425C-26 kit?

The primary difference between kit configurations is the accessories included. The GL1425C-28 includes the CR700 receiver, elevator tripod, and grade rod with inch scale. Other kit variants may substitute a different tripod, rod scale, or omit certain components. The laser instrument itself is identical across kits.

Is the GL1425C-28 covered under a manufacturer warranty?

Yes. Spectra Precision provides a limited manufacturer warranty covering defects in materials and workmanship. Express Tools is an authorized dealer, ensuring your purchase qualifies for full warranty support. Contact us for current warranty terms or to initiate a service request.