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Spectra Precision HV302GC-17 Horizontal Vertical Laser GC Package

$1,994.00
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Spectra Precision HV302GC-17
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Built for Contractors Who Can't Afford to Be Off Grade

The ProShot Alpha-C Cone Grade Laser (Model 020-0020CH) is a professional-grade rotary laser system designed for contractors who demand precise slope control on every job. Paired with the included R9 Receiver, the Alpha-C delivers ±1.7% grade accuracy across large sites — making it the right tool for grading, drainage layout, foundation work, excavation, and site preparation. Whether you're working in bright daylight across a wide-open lot or fine-tuning a drainage swale, the Alpha-C's cone beam technology gives you a consistent, reliable grade reference without the guesswork.

Overview: Where the Alpha-C Performs

The ProShot Alpha-C is engineered for real job site conditions. Its cone-beam rotation pattern projects a continuous 360° laser plane optimized for grade-sensitive applications. The self-leveling mechanism compensates for minor setup variations, so your crew spends less time fussing with tripod adjustments and more time getting work done. The R9 Receiver extends effective range and improves usability in high-ambient-light environments where the naked eye can't catch the beam. From subdivision grading to agricultural drainage to commercial pad preparation, the Alpha-C is a dependable instrument that earns its keep on site.

Key Specifications

  • Model Number: 020-0020CH
  • Grade Range: 0% to ±1.7% (manual grade mode)
  • Self-Leveling Range: ±5°
  • Accuracy: ±1/16" at 100 ft
  • Working Range: Up to 1,000 ft diameter with receiver
  • Rotation Speed: Variable (field-selectable)
  • Beam Type: Cone (360° continuous grade plane)
  • Power Source: Rechargeable battery pack
  • Receiver Included: R9 Grade Laser Receiver
  • Ingress Protection: Dust and moisture resistant for job site use

What's in the Kit

  • ProShot Alpha-C Cone Grade Laser Unit
  • R9 Grade Laser Receiver
  • Rechargeable battery pack and charger
  • Receiver mounting clamp/bracket
  • Carrying case for transport and storage
  • Operator's manual and quick-start guide

Job Site Applications

Site Grading & Earthwork: Set consistent cut/fill grades across large pads and subdivisions. The cone beam projects a continuous 360° grade plane so multiple operators and machine operators can work simultaneously from a single instrument setup.

Drainage & Swale Layout: Achieve precise positive drainage slopes for parking lots, residential lots, and agricultural fields. The 1.7% grade range covers the majority of drainage design specifications without needing secondary instruments.

Foundation & Footing Forms: Check and set form elevations with the R9 Receiver for fast, accurate results. Eliminate costly over-excavation and re-work by establishing a reliable elevation reference before concrete is placed.

Road Base & Subgrade Preparation: Use the Alpha-C to control subgrade elevation during road base compaction and prep. Consistent grade control at this stage means smoother paving and better long-term road performance.

Compatible Accessories

Related Guides

Frequently Asked Questions

What is the maximum grade the ProShot Alpha-C can project?
The Alpha-C supports a manual grade range of 0% to ±1.7%. This covers the vast majority of site grading, drainage, and pad preparation applications. For slopes steeper than 1.7%, a pipe laser or slope-specific instrument would be required.
Does the Alpha-C come with a receiver, or is it sold separately?
The 020-0020CH kit includes the ProShot R9 Grade Laser Receiver. The receiver is essential for outdoor use where the laser beam is not visible to the naked eye, and it extends the working range of the instrument significantly.
Is the ProShot Alpha-C self-leveling?
Yes. The Alpha-C features an automatic self-leveling mechanism that compensates for tripod setup variations within ±5°. If the instrument is set up outside that range, it will alert the operator rather than project an inaccurate beam.
What is the effective working range of the Alpha-C with the R9 Receiver?
With the R9 Receiver, the Alpha-C has an effective working diameter of up to 1,000 feet, making it well-suited for large commercial sites, agricultural grading, and subdivision pad work where long sight lines are common.

Frequently Asked Questions

What is the maximum grade the ProShot Alpha-C can project?

The Alpha-C supports a manual grade range of 0% to ±1.7%. This covers the vast majority of site grading, drainage, and pad preparation applications. For slopes steeper than 1.7%, a pipe laser or slope-specific instrument would be required.

Does the Alpha-C come with a receiver, or is it sold separately?

The 020-0020CH kit includes the ProShot R9 Grade Laser Receiver. The receiver is essential for outdoor use where the laser beam is not visible to the naked eye, and it extends the working range of the instrument significantly.

Is the ProShot Alpha-C self-leveling?

Yes. The Alpha-C features an automatic self-leveling mechanism that compensates for tripod setup variations within ±5°. If the instrument is set up outside that range, it will alert the operator rather than project an inaccurate beam.

What is the effective working range of the Alpha-C with the R9 Receiver?

With the R9 Receiver, the Alpha-C has an effective working diameter of up to 1,000 feet, making it well-suited for large commercial sites, agricultural grading, and subdivision pad work where long sight lines are common.