Spectra Precision GL1425C-26 Dual Grade Laser Bluetooth w/ CR700 Multi-Use Deluxe Receiver, Standard HD Tripod, Rod INCHES

Built for the Grade Work That Single-Slope Lasers Can't Handle

The Spectra Precision GL1425C-26 is a professional dual-axis grade laser designed for site contractors, drainage crews, and excavation teams who routinely work on projects where two independent slopes must be held simultaneously. Where a single-slope unit forces costly repositioning mid-job, the GL1425C-26 locks in both X and Y axis grades from a single setup — keeping your crew productive and your machine on grade from the first cut to final pass. This kit includes the GL1425C laser, CR700 machine-control receiver, tripod, and grade rod, giving you everything needed to get to work the same day it arrives.

Overview and Jobsite Applications

The GL1425C-26 is engineered for contractors who build parking lots, athletic fields, retention ponds, highway drainage swales, and any surface requiring compound pitch. The laser self-levels on a single axis while you dial in the second slope manually, giving you precise control without complex field programming. Bluetooth connectivity lets operators adjust grade settings remotely from a smartphone or grade rod display, reducing machine downtime when adjustments are needed. The CR700 receiver is compatible with most excavator and dozer machine-control systems, making integration into an existing equipment fleet straightforward. Range extends to 2,000 feet in diameter under normal conditions, and the unit is rated IP66 for dust and water resistance — built to stay on the job through a full workday in tough site conditions.

Key Specifications

• Grade Range: ±10% on both X and Y axes
• Grade Accuracy: ±1mm per 10m (±1/16 in. per 30 ft.)
• Self-Leveling Range: ±5° single axis
• Working Range: Up to 2,000 ft. diameter with CR700 receiver
• Rotation Speed: 100, 300, 600 RPM selectable
• Bluetooth Range: Up to 100 ft. (30 m)
• Battery Life: 80+ hours on D-cell alkaline batteries
• Ingress Protection: IP66 dust and water resistant
• Operating Temperature: -20°C to +50°C (-4°F to +122°F)
• Laser Class: Class 3R visible red diode

What's in the Kit (GL1425C-26)

• Spectra Precision GL1425C Dual Grade Laser
• CR700 Machine-Control Receiver with mounting bracket
• Heavy-duty adjustable tripod
• 5-meter grade rod
• D-cell battery pack
• Carrying case
• Operator's manual and quick-start guide

Job Applications

Parking Lot Construction: Set cross-slope and longitudinal grade simultaneously to achieve proper storm drainage without repositioning the instrument between passes. The GL1425C-26 holds both slopes independently, letting grading crews work faster with fewer grade checks.

Retention Pond and Drainage Swale Grading: Compound slopes on retention basins and drainage channels require precise dual-axis control. The GL1425C-26 maintains consistent pitch in both directions, ensuring water flows to the correct outfall without ponding or erosion.

Athletic Field Construction: Crown grading on football fields, soccer pitches, and baseball outfields demands repeatable dual-slope accuracy. This unit delivers the consistency needed to meet surface drainage specifications on sports turf projects.

Highway and Infrastructure Drainage: Roadway shoulder grading and ditch construction frequently require independent X and Y slopes. The long working range and machine-mount receiver make the GL1425C-26 well suited for dozer and motor grader applications on DOT and municipal projects.

Compatible Accessories

• CR700 Replacement Receiver
• Spectra HL760 Hand-Held Receiver
• Spectra RC703 Bluetooth Remote Control
• Heavy-Duty Laser Tripod
• Spectra Carrying and Storage Case
• Alkaline D-Cell Battery Pack (10-pack)

Related Guides

• How to Set Dual Slope Grade with the GL1425C — Step-by-Step Field Guide
• GL1425C vs. GL422N: Which Dual Grade Laser Is Right for Your Job?
• Machine-Control Receiver Setup: Integrating the CR700 with Excavators and Dozers
• Laser Level Maintenance Tips for Jobsite Longevity

Frequently Asked Questions

Can the GL1425C-26 hold two slopes at the same time?

Yes. The GL1425C is a true dual-grade laser that independently controls slope on both the X and Y axes simultaneously. You can set one axis to self-level while manually dialing in the second slope, or configure both axes for fixed grade — making it ideal for compound-pitch surfaces like parking lots and athletic fields.

Is the CR700 receiver compatible with my excavator or dozer?

The CR700 is designed for machine-control applications and is compatible with most major excavator and dozer brands. It mounts to the blade or bucket and connects to the machine's existing grade display or indicator system. Contact Express Tools if you need confirmation for a specific machine make and model.

How does the Bluetooth remote work in the field?

The GL1425C uses Bluetooth to connect with the Spectra RC703 remote control or a compatible Android device running the Spectra Layout app. From up to 100 feet away, operators can adjust slope values, rotation speed, and self-leveling settings without walking back to the instrument — reducing machine downtime during grade adjustments.

What is the working range of the GL1425C-26, and is it enough for large sites?

The GL1425C-26 has a working diameter of up to 2,000 feet when used with the CR700 receiver under clear line-of-sight conditions. This is sufficient for most commercial grading, parking lot, and drainage projects. For very large open sites or bright sunlight conditions, using the receiver's sensitivity controls and shading the detector can help maximize effective range.