Topcon RL-VH4DR GC General Contractor Horiz / Vert Laser Package, w/ LS-80A Receiver and RC40 Remote (313750722)

Overview

The Topcon RL-VH4DR GC General Contractor Laser Package is a professional-grade rotating laser system designed for general contractors, interior specialists, and construction professionals who demand precision and versatility on the jobsite. This comprehensive package combines horizontal and vertical laser capabilities in a single rugged unit, making it an essential tool for layout, alignment, leveling, and plumbing applications.

At the heart of this system is the RL-VH4DR rotating laser, which features dual-axis capability for both horizontal and vertical plane projection. The package includes the LS-80A laser receiver with mounting bracket for extended range detection up to 2,600 feet (800m) diameter, and the RC-40 remote control for convenient operation from up to 100 feet away. This discontinued model represents exceptional value for contractors seeking professional-grade laser technology at a competitive price point.

The RL-VH4DR excels in interior construction applications including drop ceiling installation, wall framing, concrete forming, layout work, and elevation transfers. Its self-leveling capability ensures accuracy within ±1/16 inch at 100 feet, while the robust IP66 dust and water resistance rating guarantees reliable performance in challenging construction environments. Whether you're working on commercial build-outs, residential remodeling, or large-scale interior projects, this laser package delivers the precision and functionality demanded by today's construction professionals.

Key Specifications

• Leveling Range: ±5 degrees self-leveling with manual slope capability
• Accuracy: ±1/16 inch at 100 feet (±1.5mm at 30m)
• Working Diameter: Up to 2,600 feet (800m) with LS-80A receiver
• Rotation Speed: 0, 10, 20 RPM (revolutions per minute) with scan mode
• Laser Class: Class 2 visible red beam laser
• Power Source: Rechargeable Ni-MH battery or alkaline batteries
• Battery Life: Up to 100 hours continuous operation
• Operating Temperature: 14°F to 122°F (-10°C to 50°C)
• Dust/Water Protection: IP66 rated for dust-tight and water-resistant operation
• Drop Resistance: Survives drops up to 3 feet (1m) onto hard surfaces
• Remote Range: RC-40 operates up to 100 feet (30m) from laser
• Receiver Accuracy: LS-80A accurate to ±1/16 inch in standard mode

What's in the Kit

• Topcon RL-VH4DR horizontal/vertical rotating laser
• LS-80A machine-mountable laser receiver with clamp
• RC-40 remote control unit
• Rechargeable Ni-MH battery pack
• AC battery charger with power cord
• Soft carrying case for laser unit
• Instruction manual and quick start guide
• Laser safety glasses (red visibility enhancement)
• Manufacturer's limited warranty documentation

Job Applications

• Drop Ceiling Installation: Project a perfectly level horizontal plane across entire rooms to ensure consistent ceiling grid height, eliminating the need for multiple measurements and reducing installation time by up to 50% on commercial ceiling projects.
• Interior Wall Framing: Establish precise vertical plumb lines for steel stud or wood framing layouts, ensuring walls are perfectly straight over long runs and multiple stories. The vertical mode eliminates累積 alignment errors common with traditional plumb bob methods.
• Concrete Form Alignment: Set and verify formwork elevation and alignment for slabs, footings, and foundations. The receiver-equipped package allows single-operator grade checking and adjustment, improving efficiency on concrete pours and reducing callbacks for out-of-level work.
• Door and Window Opening Layout: Transfer elevation points and establish consistent header heights throughout multi-room projects. The rotating beam provides a continuous reference line that multiple tradespeople can work from simultaneously, coordinating rough opening heights across entire floor plates.
• Mechanical and Electrical Layout: Position HVAC ductwork, electrical conduit runs, and plumbing penetrations at consistent elevations. The long-range receiver capability enables precise alignment of sleeves and mechanical equipment across large commercial spaces without moving the laser.
• Tile and Flooring Installation: Create level reference lines for large-format tile installation, ensuring consistent grout lines and eliminating lippage. The horizontal rotation provides a constant elevation reference that installers can check continuously throughout the installation process.

Compatible Accessories

• Topcon TP-L4BG Adjustable Tripod: Telescoping tripod with adjustable legs for stable laser mounting on uneven surfaces
• Topcon LS-100D Digital Laser Receiver: Upgraded receiver with LCD display for enhanced precision and readout capability
• Topcon RC-50 Long-Range Remote: Extended-range remote control for operation up to 200 feet
• Elevation Rod with Receiver Bracket: Graduated grade rod for efficient elevation transfer and benchmarking
• Replacement Ni-MH Battery Pack: Additional battery for extended runtime on long workdays
• Alkaline Battery Tray: Alternative power option using standard D-cell batteries
• Hard Shell Carrying Case: Heavy-duty protective case for equipment transport and storage
• Wall Mount Bracket: Secure mounting solution for vertical laser applications

Related Guides

• Complete Rotating Laser Buyer's Guide for Contractors
• How to Use a Laser Receiver for Grade Checking
• Interior Construction Laser Applications and Best Practices
• Rotating Laser Maintenance and Calibration Tips

FAQ

Is the Topcon RL-VH4DR GC still supported even though it's discontinued?

Yes, while Topcon has discontinued production of the RL-VH4DR GC line, the units remain fully supported for warranty service and calibration. Replacement parts and compatible accessories like batteries, receivers, and remotes continue to be available. This discontinued status simply means you're getting professional-grade laser technology at an exceptional value price point while supplies last.

What's the difference between the LS-80A receiver and standard laser detectors?

The LS-80A is a machine-mountable receiver designed for both handheld and equipment-mounted applications. It features a large detection window, multi-position accuracy settings, and a durable clamp system. Unlike basic detectors, the LS-80A provides visual and audible indicators for on-grade, high, and low positions, with accuracy to ±1/16 inch. The included mounting bracket allows attachment to grade rods, stakes, or machinery for hands-free operation.

Can this laser be used outdoors for site work and grading?

While the RL-VH4DR is primarily designed as an interior/general contractor laser, it can be used outdoors with the LS-80A receiver for layout and alignment work. The receiver extends the working range and makes the laser beam detectable in bright conditions. However, for dedicated site grading and excavation work, a true grade laser with enhanced outdoor capabilities and slope matching would be more appropriate. This unit excels at building construction, concrete work, and interior applications.

How does the RC-40 remote control improve jobsite efficiency?

The RC-40 remote eliminates the need to walk back to the laser for adjustments, saving significant time on large projects. You can power the laser on/off, change rotation speeds, switch between horizontal and vertical modes, and activate scan mode from up to 100 feet away. This is particularly valuable when working alone or when the laser is positioned in difficult-to-access locations like scaffolding, high tripod setups, or behind formwork. One operator can set up, adjust, and work with the laser without a second person.