Turnkey Dual-Grade Laser System for General Construction
The Spectra Precision HV302GC-26 is a complete horizontal and vertical laser package engineered for general contractors, concrete crews, and construction pros who demand reliable grade reference across multiple planes. This is not just a transmitter—it ships as a fully production-ready system including the RC402N wireless remote control, CR700 digital grade receiver, measuring rod, and tripod. Whether you're shooting elevations on a foundation pour, establishing drop-ceiling grids, or grading a slab, the HV302GC-26 gives you everything you need to get to work the moment it arrives on site.
System Overview and Jobsite Applications
The HV302GC-26 operates as a self-leveling horizontal and vertical rotating laser, projecting a visible red beam suitable for both interior finish work and exterior grading tasks. Its self-leveling range handles slightly unlevel setups quickly, reducing setup time on uneven ground. The CR700 digital receiver extends working range beyond what the naked eye can detect, making the system viable outdoors in bright conditions. The RC402N remote lets operators adjust grade from up to 100 feet away, eliminating the need to walk back to the instrument between setups—a real productivity advantage on larger pours or grading runs.
Key Specifications
- Laser Type: Red beam rotating laser, horizontal and vertical planes
- Self-Leveling Range: ±5°
- Accuracy: ±1/16 in. at 100 ft (±1.5 mm at 30 m)
- Working Range: Up to 1,600 ft diameter with CR700 receiver
- Rotation Speed: 150 / 300 / 600 RPM selectable
- Grade Range: ±10% single axis
- Remote Control: RC402N wireless, up to 100 ft range
- Receiver: CR700 digital grade receiver included
- Power: Internal rechargeable battery pack
- IP Rating: Weather and dust resistant for outdoor use
- Tripod: Included aluminum tripod
- Rod: Included measuring / grade rod
What's in the Kit
- Spectra Precision HV302GC-26 rotating laser transmitter
- RC402N wireless remote control with grade adjustment capability
- CR700 digital grade receiver with rod clamp
- Aluminum tripod for stable field setup
- Measuring rod for grade and elevation referencing
- Rechargeable battery pack and charger
- Carrying case for transport and storage
- Operator's manual and warranty documentation
Job Applications
Concrete Flatwork and Foundation Layout: Set the HV302GC-26 at a known benchmark, dial in your design grade with the RC402N, and have your crew screed or check elevations across the entire slab without walking back to the gun. The CR700 receiver gives clear high/low/on-grade indication even in direct sunlight.
Site Grading and Earthwork: With a 1,600-foot working diameter, a single instrument setup covers most residential and light commercial grading jobs. Operators on equipment can read the CR700 without leaving the cab, keeping dirt moving efficiently.
Interior Finish and Drop Ceilings: Switch to vertical plane mode to shoot layout lines for partition walls, stud layout, or tile reference. The visible red beam is easy to pick up indoors, eliminating the need for a receiver on close-range interior tasks.
Utility and Pipeline Grade: The single-axis grade function and remote grade adjustment make it practical for setting pipe runs, drainage slopes, and utility trenches where grade consistency over distance is critical.
Compatible Accessories
- CR700 Replacement Receiver
- RC402N Replacement Remote Control
- Spectra Precision Laser Detector Rod Clamp
- Heavy-Duty Aluminum Tripod Upgrade
- Spectra Precision Carrying / Transport Case
- Replacement Rechargeable Battery Pack
Related Guides
- How to Set Up a Rotating Laser for Slab Pours
- Red Beam vs. Green Beam Lasers: Which Do You Need?
- Using a Digital Receiver for Outdoor Grading Jobs
- Spectra Precision Laser Buying Guide for Contractors
Frequently Asked Questions
- Can the HV302GC-26 be used outdoors in daylight?
- Yes. While the red beam itself is difficult to see in bright sunlight, the included CR700 digital receiver picks up the beam at distances up to 1,600 feet in full daylight, displaying clear on-grade, high, and low indicators so your crew can work efficiently outdoors without waiting for low-light conditions.
- What grade range does the HV302GC-26 support?
- The HV302GC-26 supports single-axis grade adjustment up to ±10%, which covers the vast majority of residential and commercial site grading, drainage, and flatwork applications. Grade is adjustable remotely via the RC402N controller from up to 100 feet away.
- Is this a self-leveling laser or does it need to be manually leveled?
- It is self-leveling within a ±5° range. As long as the tripod is set up reasonably close to level, the instrument compensates automatically and begins rotating. If the out-of-level condition exceeds the compensator range, the laser will stop rotating and alert the operator rather than projecting a false grade.
- Does this package include everything needed to start working on site?
- Yes. The HV302GC-26 package includes the laser transmitter, RC402N remote, CR700 receiver with rod clamp, aluminum tripod, measuring rod, rechargeable battery with charger, and carrying case. You do not need to purchase additional components to begin layout or grading work immediately upon delivery.
