Spectra Precision HV101GC-2 Horizontal / Vertical General Construction Package INCHES

Overview

The Spectra Precision HV101GC-2 Horizontal/Vertical General Construction Package delivers professional-grade laser leveling in imperial measurements for North American job sites. This complete system combines a self-leveling rotary laser with an inch-graduated measuring rod, eliminating the need for metric conversions and reducing costly layout errors. Whether you're establishing foundation elevations, setting grade stakes, or aligning formwork, this 1,000-foot diameter working range package provides the accuracy and simplicity contractors need to keep projects moving efficiently. The durable construction withstands the rigors of active job sites while the intuitive operation gets your crew productive immediately without extensive training.

Key Specifications

• Accuracy: ±1/8 inch at 100 feet
• Working Range: Up to 1,000-foot diameter (500-foot radius)
• Leveling System: Automatic self-leveling within ±5 degrees
• Rotation Speed: 600 RPM (standard), 0/300/600 RPM selectable
• Laser Type: Visible red beam, Class 2
• Measuring Rod: Inch graduations on telescoping aluminum rod
• Power Source: Rechargeable NiMH battery (40+ hours runtime)
• Operating Temperature: 14°F to 122°F (-10°C to 50°C)
• IP Rating: IP66 (dust-tight and water-resistant)
• Mounting Thread: 5/8-11 standard tripod mount

What's in the Kit

• HV101 Horizontal/Vertical Rotary Laser
• HR320 Laser Receiver with rod clamp
• HL450 Telescoping Grade Rod (inches)
• Rechargeable NiMH Battery Pack
• Battery Charger with AC adapter
• Protective Hard Case
• Operating Manual
• 2-Year Manufacturer Warranty

Job Applications

• Foundation and Footing Layout: Establish consistent elevation points for excavation depth and formwork height without constant tape measure checks, ensuring footings meet engineered specifications the first time.
• Grade Stake Setting: Mark cut-and-fill elevations across large sites rapidly using the receiver and inch-graduated rod, eliminating conversion errors that cause rework and material waste on earthwork projects.
• Concrete Slab Preparation: Verify subgrade elevations and set screed rails to exact height requirements, preventing costly concrete overages or under-pours that delay finishing schedules.
• Site Drainage and Grading: Check existing grades and establish proper slope elevations for surface water management, ensuring building pads and parking areas drain correctly before paving begins.
• Vertical Alignment Tasks: Plumb elevator shafts, check wall verticality, and align structural columns using the vertical beam mode, maintaining building plumb tolerances through multiple floor levels.
• Rough Framing and MEP Installation: Level ceiling grid systems, align HVAC ductwork runs, and establish consistent heights for electrical boxes throughout large commercial interiors without moving between rooms.

Compatible Accessories

Heavy-Duty Aluminum Tripod | Upgrade Laser Receivers | RC402N Remote Control | Laser Enhancement Glasses | Additional Grade Rods | Wall Mount Brackets

Related Guides

How to Choose a Construction Laser Level | Understanding Laser Level Accuracy Requirements | Site Layout Best Practices for Contractors | Rotary Laser Maintenance and Calibration Guide

FAQ

What's the actual working range with the included receiver?

The HR320 receiver detects the laser beam up to 500 feet in radius (1,000-foot diameter) in typical daylight conditions. In bright sunlight, effective range may reduce to 300-400 feet radius. For maximum range, work during overcast conditions or early morning/late afternoon when possible.

Can this laser be used for interior and exterior work?

Yes, the HV101GC-2 is designed for both applications. The IP66 rating protects against rain and dust on exterior sites, while the adjustable rotation speeds allow precise indoor alignment work. The visible red beam works well indoors; for bright outdoor conditions, rely on the receiver rather than trying to see the beam directly.

How does the inch-graduated rod save time compared to metric rods?

When your plans specify elevations in feet and inches, the inch-graduated rod eliminates constant conversions between metric and imperial measurements. You simply read the elevation directly from the rod in the units your plans use, reducing math errors and speeding up the staking process significantly on sites with dozens or hundreds of elevation points.

Is the self-leveling feature durable enough for active construction sites?

The HV101 includes both automatic leveling for normal setup and a manual mode that locks the compensator during transport. If the laser is bumped beyond its leveling range during operation, it automatically shuts down the beam and alerts you rather than providing false readings. This failsafe protects against unknowingly working to incorrect elevations after impact.