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Topcon RL-SV1S Self-Leveling Single Grade Laser RB Kit with LS-100D Deluxe Receiver and Rechargeable Batteries
±5° Range
Cover large layout jobs with a ±5° working reach.
±1mm at 10m (self-leveling) Accuracy
Hold grade with a ±1mm at 10m (self-leveling) accuracy rating.
Power Source
Runs on Rechargeable Batteries 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.
Best-Price Guarantee
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 Self-Leveling Single Grade Laser RB Kit with LS-100D Deluxe Receiver and Rechargeable Batteries is a Topcon Grade Laser with ±1mm at 10m (self-leveling) accuracy and ±5° self-leveling range. It's available from Express Tools as an authorized Topcon dealer with same-day shipping on in-stock orders.
What contractors use this grade lasers for
Motor Grader Control
Automatic blade control for road base and subgrade
Dozer Earthwork
Push-to-grade for rough cut and finish passes
Pipe Trench Grading
Set trench bottom elevation for gravity pipe installation
Drainage Work
Parking lot drainage, swales, retention basins
Product Description
Topcon RL-SV1S with LS-100D Deluxe Receiver Kit
The Topcon RL-SV1S Single Grade Rotary Laser Kit paired with the LS-100D Deluxe Receiver delivers the precision and reliability that grading contractors demand on demanding jobsites. Whether you are working in harsh sunlight, dusty environments, or tight grade tolerances, this kit gives you the signal detection capability and battery endurance to keep crews productive all day without compromise.
Kit Overview & Jobsite Applications
Designed for contractors who require dependable single-grade accuracy across a wide range of earthwork and site preparation applications, the RL-SV1S operates at a self-leveling accuracy of ±1mm at 10m. The LS-100D Deluxe Receiver extends detection range up to 600m in diameter and features enhanced signal processing that outperforms standard receivers in bright sunlight and adverse weather. Rechargeable battery packs eliminate the ongoing cost and downtime associated with disposable batteries, making this kit a strong long-term investment for busy crews.
Key Specifications
- Model: Topcon RL-SV1S with LS-100D Deluxe Receiver
- Accuracy: ±1mm at 10m (self-leveling)
- Self-Leveling Range: ±5°
- Operating Range: Up to 600m diameter with LS-100D receiver
- Rotation Speed: 300/600/900 RPM selectable
- Laser Class: Class 3R, 635nm red beam
- IP Rating: IP66 — dust-tight and water-resistant
- Power: Rechargeable battery pack (included)
- Battery Life: Up to 100 hours per charge
- Receiver Display: LCD with audible and visual grade indication
- Receiver Detection Window: 54mm tall for fast rod pickup
- Weight: Approx. 2.5 kg (laser unit)
What's in the Kit
- Topcon RL-SV1S Single Grade Rotary Laser
- LS-100D Deluxe Laser Receiver
- Rechargeable Battery Pack
- Battery Charger
- Carrying Case
- Rod Clamp for LS-100D Receiver
- Operator's Manual
Job Applications
Site Grading & Earthwork: The RL-SV1S excels at establishing consistent single-plane grades for mass grading, cut-and-fill operations, and rough grading prior to paving or foundation work. The extended 600m operating range means machine operators and grade checkers can work simultaneously across large sites without repositioning the instrument.
Drainage & Utility Slope Work: Precise single-grade control makes this kit ideal for setting drainage swales, storm sewer lines, and utility trench grades. Contractors can dial in exact slopes and trust the LS-100D receiver to hold grade consistently even when site dust obscures visibility.
Concrete Flatwork & Sub-base Prep: Before pouring slabs or setting sub-base aggregate, the RL-SV1S provides a reliable elevation reference for screeding and compaction crews. The bright audible and visual indicators on the LS-100D keep finishers working efficiently without stopping to read a level.
Agricultural & Land Leveling: For agricultural laser leveling operations, the RL-SV1S single-grade mode and long operating range deliver the coverage and battery endurance needed for large field leveling passes, helping optimize irrigation uniformity and field drainage.
Compatible Accessories
- Topcon TP-L5G Green Beam Pipe Laser
- Topcon Universal Rod Eye RE-2 Receiver
- Topcon RC-40 Wireless Remote Control
- Heavy-Duty Aluminum Tripod for Laser Levels
- Grade Rod & Receiver Clamp Set
Related Guides
- How to Set Up a Rotary Laser Level for Site Grading
- Topcon RL-SV1S vs RL-H5A: Which Laser Is Right for Your Project?
- Using a Laser Receiver in Bright Sunlight: Tips for Contractors
- Maintaining and Caring for Your Rotary Laser Level
Frequently Asked Questions
- What is the maximum operating range of the RL-SV1S with the LS-100D receiver?
- With the LS-100D Deluxe Receiver, the Topcon RL-SV1S has an operating range of up to 600 meters in diameter, making it well-suited for large site grading, earthwork, and agricultural leveling projects where crews need to work across wide areas without repositioning the instrument.
- Does the RL-SV1S work in direct sunlight?
- Yes. While the RL-SV1S emits a standard red beam that may be difficult to see with the naked eye in bright conditions, the LS-100D Deluxe Receiver is specifically engineered with enhanced signal processing to detect and lock onto the beam reliably in direct sunlight and dusty environments, maintaining accurate grade indication for your crew.
- Are the batteries included and what is the expected battery life?
- This kit includes a rechargeable battery pack and charger. On a full charge, the RL-SV1S delivers up to approximately 100 hours of continuous operation, significantly reducing downtime and eliminating the recurring cost of disposable batteries on long projects.
- Is the Topcon RL-SV1S compatible with machine control systems?
- The RL-SV1S is a single-grade rotary laser designed primarily for manual grade checking with a rod and receiver. For full machine control integration, Topcon offers dedicated machine control laser systems. However, the RL-SV1S can be used alongside grade control equipment for manual verification and layout tasks on the same site.
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.
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.
| Laser Type | Red Beam |
|---|---|
| Alignment Capabilities | Horizontal and Vertical |
| Applications | Interior and Exterior |
| Beam Color | Red |
| Leveling | Automatic self-leveling |
| Included Receiver | CR700 Multi-Use Receiver |
| Included Remote | RC1402N Remote |
| Included Case | Small Case |
| Power Source | Rechargeable Batteries |
| Manufacturer | Spectra Precision |
| Accuracy | ±1mm at 10m (self-leveling) |
| Self-leveling Range | ±5° |
| Rotation Speed | 300/600/900 RPM selectable |
| Laser Class | Class 3R, 635nm red beam |
| IP Rating | IP66 — dust-tight and water-resistant |
| Power | Rechargeable battery pack (included) |
| Battery Life | Up to 100 hours per charge |
| Weight | Approx. 2.5 kg (laser unit) |
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
$1795.00

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