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Topcon RL-SV1S Self-Leveling Single Grade Laser RB Kit with LS-100D Deluxe Receiver and Rechargeable Batteries
±5 degrees Range
Cover large layout jobs with a ±5 degrees working reach.
±10 arc seconds (±1/16 inch at 100 feet) Accuracy
Hold grade with a ±10 arc seconds (±1/16 inch at 100 feet) accuracy rating.
Battery Type
Runs on Rechargeable NiMH battery pack for jobsite flexibility.
Authorized Topcon Dealer
Genuine, factory-fresh Topcon equipment with legitimate firmware and calibration documentation.
Continuous grade control, no stakes
Eliminates grade staking between passes. One operator on the machine vs. 2-3-person conventional crew.
Authorized Dealer
Genuine equipment sourced straight from manufacturer partners.
Ships Same Day
Orders placed before 2 PM CT leave the dock today.
Genuine Gear
Factory-fresh, authentic units with legitimate firmware.
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Authorized-dealer pricing on every unit — request a quote anytime.
Kit Builder
Not sure what goes with this grade laser?
Answer a few job questions and our Kit Builder assembles the full setup — receiver, rod, tripod, and case matched to your workflow.
Quick Answer
What is the Topcon RL-SV1S?
The Topcon RL-SV1S with LS-100D Deluxe Receiver combines rotary laser technology with an advanced receiver for grading professionals and excavation crews. The deluxe receiver provides enhanced distance detection and slope work capabilities.
What contractors use this grade lasers for
Long-Range Grade Control
Precision Slope Verification
Multi-Site Daily Operations
Product Description
Overview
The Topcon RL-SV1S Self-Leveling Single Grade Laser RB Kit is an essential tool for construction contractors, grading professionals, and excavation crews who demand precision slope work and level applications. This comprehensive kit combines Topcon's reliable RL-SV1S rotary laser with the advanced LS-100D Deluxe receiver, delivering superior performance for single grade applications. Unlike basic leveling lasers, the RL-SV1S offers single slope capability, making it ideal for drainage projects, foundation work, and grading operations. The LS-100D Deluxe receiver featured in this kit provides a larger display, extended detection range, and enhanced features compared to standard receivers, allowing operators to work more efficiently across larger job sites. The inclusion of rechargeable batteries eliminates the ongoing cost of disposable batteries while ensuring consistent power throughout the workday. With waterproof construction and ±10 arc second accuracy, this laser delivers professional-grade results in demanding field conditions.
Key Specifications
| Accuracy: | ±10 arc seconds (±1/16 inch at 100 feet) |
| Self-Leveling Range: | ±5 degrees |
| Grade Capability: | Single axis slope |
| Rotation Speed: | 600 RPM |
| Working Range: | Up to 2,600 feet diameter (800m) with LS-100D receiver |
| Battery Type: | Rechargeable NiMH battery pack |
| Battery Life: | Approximately 80 hours continuous operation |
| Waterproof Rating: | IP66 (dust-tight and water-resistant) |
| Operating Temperature: | -4°F to 122°F (-20°C to 50°C) |
| Laser Weight: | Approximately 5.5 lbs (2.5 kg) |
| Receiver Display: | Large LCD with backlight (LS-100D) |
| Receiver Detection Range: | Up to 1,300 feet (400m) radius |
What's in the Kit
- Topcon RL-SV1S Rotary Laser: The main laser transmitter featuring self-leveling technology and single grade slope capability. The rugged, waterproof housing protects internal components from job site dust and moisture while delivering consistent accuracy throughout the day.
- LS-100D Deluxe Laser Receiver: An advanced laser detector with large LCD display, extended detection range, and enhanced sensitivity. Features visual and audible grade indicators, multiple detection modes, and backlit display for low-light conditions. Superior to standard receivers with better range and easier-to-read display.
- Rechargeable Battery Pack: High-capacity NiMH battery pack providing up to 80 hours of continuous operation. Eliminates ongoing battery costs and ensures reliable power for extended work sessions.
- Battery Charger: Wall-plug charger designed specifically for the included rechargeable battery pack. Provides quick, safe charging between jobs.
- Protective Carrying Case: Hard-shell case designed to protect the laser and accessories during transport and storage.
Job Applications
Foundation and Footing Layout: Establish precise level references and single-grade slopes for foundation excavation and concrete pours. The ±10 arc second accuracy ensures footings meet specifications, while the waterproof construction handles wet concrete environments without concern.
Site Grading and Excavation: Set accurate grade stakes and control excavation depth across large sites. The extended 2,600-foot working diameter with the LS-100D receiver allows a single laser setup to cover significant areas, reducing setup time and increasing productivity on grading projects.
Drainage and Utility Trenching: The single grade slope capability makes this laser ideal for establishing proper drainage pitch for stormwater management, sewer lines, and utility trenches. Operators can set the exact slope needed and maintain it accurately throughout the trench length.
Concrete Formwork and Deck Leveling: Verify formwork height and establish consistent screeding references for concrete slabs, decks, and floors. The bright laser beam remains visible even in bright outdoor conditions, and the LS-100D receiver provides clear on-grade indication for precise concrete finishing.
Retaining Wall Construction: Maintain proper alignment and grade throughout retaining wall construction. The laser provides a consistent reference point that multiple crew members can work from simultaneously, ensuring the entire wall meets design specifications.
Landscape Grading: Perfect for landscape contractors creating proper drainage on lawns, athletic fields, and golf courses. The single slope function allows precise recreation of design grades, while the rechargeable batteries support all-day operation without interruption.
Building Column and Pier Layout: Transfer elevation points and establish vertical references for structural column placement. The laser plummet feature assists with precise positioning of anchor bolts and embedded plates.
Compatible Accessories
- Topcon LS-80L Machine-Mounted Laser Receiver - Ideal for grade control on bulldozers, excavators, and grading equipment when working with the RL-SV1S laser.
- Topcon Aluminum Grade Rod - Telescoping grade rod with receiver bracket for accurate elevation measurements and grade checking throughout the job site.
- Heavy-Duty Aluminum Laser Tripod - Stable tripod mount for the RL-SV1S with quick-release plate and adjustable legs for uneven terrain.
- Topcon Rotating Laser Target - High-visibility target for long-range alignment and layout work beyond receiver range.
- Topcon RC-40 Remote Control - Wireless remote for adjusting laser functions from up to 100 feet away, eliminating trips back to the instrument.
Related Guides
- How to Set and Check Slope with a Single-Grade Rotary Laser - Step-by-step instructions for establishing accurate grades using lasers like the RL-SV1S.
- Rotary Laser Comparison Guide: Single Grade vs Dual Grade Models - Understand the differences between single and dual grade lasers to select the right tool for your needs.
- Laser Receiver Buying Guide: Features and Detection Range Explained - Learn what makes the LS-100D receiver superior and how to choose the right detector.
- Rotary Laser Maintenance and Calibration Best Practices - Extend the life of your Topcon laser and maintain accuracy with proper care and maintenance.
Frequently Asked Questions
- What is the difference between the RL-SV1S RB Kit and other RL-SV1S packages?
- This RB Kit (rechargeable battery) includes the premium LS-100D Deluxe receiver instead of the standard receiver found in other packages. The LS-100D features a larger, easier-to-read display, longer detection range (up to 1,300 feet radius vs. 984 feet), and enhanced features including multiple detection modes. The RB designation indicates it includes rechargeable batteries rather than requiring disposable alkaline batteries, providing long-term cost savings and environmental benefits.
- Can the RL-SV1S be used for both horizontal leveling and slope work?
- Yes, the RL-SV1S functions as both a standard self-leveling rotary laser for horizontal leveling applications and offers single-axis slope capability. You can easily switch between level mode for foundations and slab work, and slope mode for drainage, trenching, and grading projects. However, note that this is a single-grade laser, meaning it can create slope in only one direction at a time, not dual-axis slopes.
- How long does the rechargeable battery last, and how long does it take to recharge?
- The included rechargeable NiMH battery pack provides approximately 80 hours of continuous operation when fully charged, which typically covers multiple full work days. Recharge time is approximately 5-6 hours from fully depleted to full charge. Many contractors charge overnight or keep a second battery pack as a backup for extended projects.
- Is the LS-100D receiver compatible with other Topcon rotating lasers?
- Yes, the LS-100D Deluxe receiver is compatible with all Topcon rotating lasers that operate on standard rotating laser frequencies. This includes the RL-H5A, RL-SV2S, and other Topcon rotary laser models. The receiver can be used independently on other lasers if you expand your tool collection or need multiple receivers for larger crews.
Why This Equipment
Dual Grade Control
Control two slopes simultaneously for crowns, swales, and complex drainage layouts.
Machine Ready
Pairs with machine receivers for dozer, grader, and scraper grade control.
IP67 Rated
Weatherproof for outdoor use in rain, dust, and construction site conditions.
High Accuracy
±0.1mm/m grade accuracy — holds tolerance through a full working day.
What's In The Box
Continuous grade control. No continuous labor.
Grade stakers cost $50–80/hr and disappear between passes. A dual-slope grade laser installs once and controls your blade automatically — through every cut, every fill, every pass. That's the math that makes grade lasers one of the fastest ROI investments in earthwork.
Professional contractors specify dual-grade systems for a reason: single-grade units work for straight drainage. The moment a job has a crown, a swale, or a complex parking lot slope — you need dual-grade.
Buying from Express Tools means authorized, factory-fresh inventory, legitimate firmware, and technical knowledge when you need it.
Specifications
Technical Specs
Manufacturer data and field-verified measurements.
| Accuracy | ±10 arc seconds (±1/16 inch at 100 feet) |
|---|---|
| Self-leveling Range | ±5 degrees |
| Rotation Speed | 600 RPM |
| Working Range | Up to 2,600 feet diameter (800m) with LS-100D receiver |
| Battery Type | Rechargeable NiMH battery pack |
| Battery Life | Approximately 80 hours continuous operation |
| Operating Temperature | -4°F to 122°F (-20°C to 50°C) |
Built for Topcon equipment owners
Document machine-control grading
Track blade passes, log finished grade, and produce as-built reports your inspector will accept — straight from the cab or the field.
- Bid-vs-actual production tracking
- Photo documentation per pass
- Calibration & service history
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Topcon RL-SV1S Self-Leveling Single Grade Laser RB Kit with LS-100D Deluxe Receiver and Rechargeable Batteries
$1775.00

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