The Topcon RL-HV2S (model 1051612-22) is a professional-grade, self-leveling dual-axis rotary laser engineered for contractors who demand precision across complex grading, drainage, and site preparation tasks. Manufactured in Japan to Topcon's exacting standards, this complete kit pairs the RL-HV2S laser with the LS-100D deluxe digital receiver and a rechargeable battery system — giving your crew everything needed to hit grade efficiently from day one, without ongoing alkaline battery costs eating into your margins.
Overview: Where the RL-HV2S Excels on the Jobsite
Single-slope lasers handle basic level and simple fall work, but the moment a project calls for compound grades — parking lots draining to a corner, athletic fields crowned in two directions, or pad sites with dual-axis fall — you need a dual-grade instrument. The RL-HV2S sets independent X and Y axis grades simultaneously, eliminating the need for multiple setups or manual grade calculations. Its self-leveling mechanism handles minor tripod settling automatically, keeping the beam on grade even during extended pours or grading runs. With a working range of up to 2,600 feet in diameter using the LS-100D receiver, the unit covers large commercial sites without repositioning.
Key Specifications
- Grade Range: ±10% on both X and Y axes simultaneously
- Self-Leveling Range: ±5°
- Working Diameter: Up to 2,600 ft (800 m) with LS-100D receiver
- Grade Accuracy: ±1 arc second (±0.5 mm at 50 m)
- Rotation Speed: 300 / 600 / 1200 RPM (selectable)
- Laser Class: Class 3R, 635 nm visible red beam
- Dust & Water Protection: IP66 rated
- Battery Runtime: Up to 45 hours per charge (rechargeable pack)
- Operating Temperature: -20°C to +50°C (-4°F to 122°F)
- Country of Manufacture: Japan
What's in the Kit
- Topcon RL-HV2S Rotary Laser — dual-grade, self-leveling instrument
- LS-100D Deluxe Digital Receiver — large display, audible and visual grade indication, works in full sunlight
- Rechargeable Lithium Battery Pack — up to 45 hours runtime
- Battery Charger — standard AC charger included
- Carrying Case — hard-shell case for transport and jobsite storage
- Operator's Manual
Job Applications
Parking Lot & Commercial Pad Grading: Set compound slopes in two directions simultaneously to ensure positive drainage to collection points without secondary setups or grade stakes for each axis independently.
Agricultural Land Leveling: Achieve precise dual-axis field grades for irrigation efficiency across large acreage. The 2,600 ft working range minimizes instrument moves during full field passes.
Athletic Field Construction: Crown baseball infields, soccer pitches, and football fields with accurate, repeatable dual-axis grades that shed water uniformly across the playing surface.
Concrete Flatwork & Slab Pours: Use the LS-100D receiver on a grade rod or laser screed receiver bracket to maintain consistent slab thickness and specified floor drainage grades throughout the pour.
Compatible Accessories
- Topcon LS-100D Replacement Receiver
- Topcon RD-1W Wireless Remote Control
- Topcon Elevator Tripod
- Topcon Grade Rod & Clamp Set
- Replacement Rechargeable Battery Pack for RL-HV2S
Related Guides
- How to Set Dual Grade on the Topcon RL-HV2S
- Rotary Laser Buyer's Guide: Single vs. Dual Grade
- How to Use a Laser Receiver for Grading Operations
- Topcon vs. Spectra: Which Rotary Laser Is Right for Your Crew?
Frequently Asked Questions
- Can the RL-HV2S set grade on both axes at the same time?
- Yes. The RL-HV2S is a true dual-grade instrument, allowing you to dial in independent slope percentages on both the X and Y axes simultaneously — up to ±10% on each. This makes it ideal for compound drainage applications where a single-slope laser would require multiple instrument positions or manual interpolation.
- Does this kit include a receiver, or do I need to purchase one separately?
- This kit (model 1051612-22) includes the LS-100D deluxe digital receiver. The LS-100D features a large, easy-to-read display with both visual and audible grade indication, and it performs reliably in direct sunlight — no additional receiver purchase needed to get to work.
- How long does the rechargeable battery last, and can I use AA alkaline batteries as a backup?
- The included rechargeable lithium battery pack delivers up to 45 hours of runtime per charge under normal operating conditions. The RL-HV2S also accepts standard alkaline D-cell batteries via an optional battery holder, giving you a field backup option on longer projects or remote sites without access to AC power.
- What is the IP66 rating, and does it mean the laser is waterproof?
- IP66 is an international ingress protection rating indicating the instrument is fully dust-tight and protected against powerful water jets from any direction. This means the RL-HV2S can remain operational in driving rain and dusty site conditions without damage. It is not rated for submersion, but it is built to handle the real-world conditions of an active construction site.
Frequently Asked Questions
Can the RL-HV2S set grade on both axes at the same time?
Yes. The RL-HV2S is a true dual-grade instrument, allowing you to dial in independent slope percentages on both the X and Y axes simultaneously — up to ±10% on each. This makes it ideal for compound drainage applications where a single-slope laser would require multiple instrument positions or manual interpolation.
Does this kit include a receiver, or do I need to purchase one separately?
This kit (model 1051612-22) includes the LS-100D deluxe digital receiver. The LS-100D features a large, easy-to-read display with both visual and audible grade indication, and it performs reliably in direct sunlight — no additional receiver purchase needed to get to work.
How long does the rechargeable battery last, and can I use AA alkaline batteries as a backup?
The included rechargeable lithium battery pack delivers up to 45 hours of runtime per charge under normal operating conditions. The RL-HV2S also accepts standard alkaline D-cell batteries via an optional battery holder, giving you a field backup option on longer projects or remote sites without access to AC power.
What is the IP66 rating, and does it mean the laser is waterproof?
IP66 is an international ingress protection rating indicating the instrument is fully dust-tight and protected against powerful water jets from any direction. This means the RL-HV2S can remain operational in driving rain and dusty site conditions without damage. It is not rated for submersion, but it is built to handle the real-world conditions of an active construction site.
