Spectra Precision HV302GC-4-NR Horiz/Vert - Interior/Exterior RED Beam Laser GC Package with HL450 Receiver, Rod in INCHES and Tripod

Dual-Function Laser for Interior Layout and Exterior Construction

The Spectra Precision HV302GC-4-NR combines horizontal leveling and vertical plumb beam capability in one rugged, field-proven unit. Designed for commercial and residential contractors who need reliable grade and layout performance across multiple phases of a project, this complete kit ships ready to work—no additional purchases required. With the HL450 detector, GR152 inch-graduated grade rod, and aluminum tripod included, you can set up and start shooting grades or running vertical layout within minutes of opening the case.

Product Overview & Jobsite Applications

The HV302GC-4-NR operates in both horizontal and vertical modes, giving crews the flexibility to level slabs and footings, establish finish floor elevations, and transfer points for wall plumb checks—all with a single instrument. The red beam laser is visible to the naked eye indoors and pairs with the HL450 receiver for extended outdoor range. Whether you're setting concrete forms, checking column plumb, or running interior stud layout, this unit handles the workload of a general contractor's daily operations without requiring a dedicated survey crew.

Key Specifications

• Beam Type: Red diode laser
• Operating Modes: Horizontal self-leveling, vertical, manual tilt
• Self-Leveling Range: ±5°
• Accuracy: ±1/16 in. at 100 ft (±1.5 mm at 30 m)
• Working Range (with detector): Up to 2,000 ft (600 m) diameter
• Rotation Speed: Selectable — slow, medium, fast
• IP Rating: IP54 dust and splash resistant
• Power Source: 4 x D-cell alkaline batteries (included)
• Battery Life: Up to 100 hours
• Tripod Mount: 5/8 in. x 11 thread
• Operating Temperature: -4°F to 122°F (-20°C to 50°C)

What's in the Kit

• Spectra Precision HV302GC Laser — horizontal/vertical red beam rotary laser with self-leveling and out-of-level alarm
• HL450 Laser Receiver — long-range detector with audible and visual grade indicators, compatible with all Spectra red beam rotaries
• GR152 Grade Rod — 13 ft telescoping fiberglass rod graduated in feet, inches, and 8ths for direct field readings
• Aluminum Tripod — adjustable height, 5/8 in. x 11 threaded head, stable on uneven ground
• D-Cell Alkaline Batteries — pre-included so the kit is job-ready on arrival
• Carrying Case — protective storage for laser head and accessories

Job Applications

Concrete Forming & Slab Work: Set the laser on a tripod at a benchmark elevation and use the HL450 receiver on the grade rod to shoot form heights and confirm pour depths across the entire slab footprint—no string lines required.

Interior Framing & Finish Work: Switch to vertical mode to establish plumb reference lines for door and window openings, partition walls, and column centerlines. The beam is bright enough indoors to mark directly without the receiver.

Exterior Site Layout: Use the receiver's 2,000 ft working diameter to establish elevations across large commercial sites, parking lots, and grading operations where optical levels lose efficiency.

Utility & Drainage Grading: Set a consistent grade reference for drainage swales, trenches, and utility corridors. The manual slope mode (grade mode) on the HV302GC allows contractors to dial in a specified grade percentage for consistent fall across long runs.

Compatible Accessories

• HL450 Replacement Laser Receiver
• Spectra Precision Rod Clamp for HL450
• GR152 Fiberglass Grade Rod (Replacement)
• Heavy-Duty Aluminum Tripod Upgrade
• Spectra Precision Carrying Case (Laser + Accessories)
• Trimble / Spectra Red Beam Laser Target Plate

Related Guides

• How to Set Up a Rotary Laser for Slab Pours
• Horizontal vs. Vertical Laser Modes: When to Use Each
• Choosing the Right Laser Receiver for Outdoor Work
• Spectra Precision HV302 vs. HV101 — Which Kit Is Right for Your Crew?

Frequently Asked Questions

Can the HV302GC-4-NR be used outdoors in daylight?

Yes. While the red beam is less visible in bright sunlight to the naked eye, the included HL450 receiver extends the working range up to 2,000 ft in diameter outdoors and functions reliably in full daylight. For most exterior grading and forming applications, the detector is all you need.

Does this laser self-level automatically?

Yes. The HV302GC features automatic self-leveling within a ±5° range. If the instrument is set up outside that range, an audible alarm and beam shutoff alert the operator, preventing inaccurate readings from being used on the job.

Is the HL450 receiver compatible with other Spectra or Trimble lasers?

The HL450 is compatible with Spectra Precision and Trimble red beam rotary lasers. It is not cross-compatible with green beam lasers, which operate at a different wavelength and require a green-specific detector.

What is the warranty on the HV302GC-4-NR?

Spectra Precision covers the HV302GC with a two-year standard warranty against defects in materials and workmanship. Express Tools is an authorized dealer, so all warranty claims are fully supported through official Spectra Precision service channels.