Professional Rotary Laser Precision for the Demanding Jobsite
The Topcon RL-H5A DB Rotary Laser Level (SKU: 1021200-07) is an industry-proven, self-leveling horizontal laser engineered for contractors who demand reliability, accuracy, and speed on every project. As an authorized Topcon dealer, Express Tools supplies this complete DB package configured to get your crew working immediately — from grading and concrete flatwork to structural layout and site preparation. Whether you're leveling a slab, establishing grades across a large parcel, or managing drainage slopes, the RL-H5A DB delivers the performance that professional trades depend on.
Product Overview & Jobsite Applications
The Topcon RL-H5A is one of the most recognized rotary lasers in the construction industry, and for good reason. Its automatic self-leveling mechanism compensates for minor instrument setup inconsistencies and gets you on grade in seconds. The DB (Dual Beam) package expands the instrument's utility by supporting dual-grade slope functions, making it ideal for applications requiring precise single- or dual-axis grade control. With a visible operating range of up to 2,600 feet in diameter (with detector), the RL-H5A is well-suited to large open jobsites, agricultural grading, road construction, and site development projects.
Key Specifications
- Accuracy: ±10 arc seconds (self-leveling)
- Self-Leveling Range: ±5°
- Operating Range: Up to 800m (2,600 ft) diameter with detector
- Rotation Speed: 100, 300, or 600 RPM (selectable)
- Grade Range: ±10% on both X and Y axes (DB model)
- Grade Increment: 0.01%
- Dust & Water Protection: IP66 rated
- Battery Life: Approximately 100 hours (4 x AA alkaline batteries)
- Operating Temperature: -20°C to +50°C (-4°F to +122°F)
- Weight: Approximately 2.0 kg (4.4 lbs) with batteries
What's Included in the DB Package
- Topcon RL-H5A Dual Beam Rotary Laser Unit
- Topcon LS-80L Laser Detector
- Detector Clamp for Grade Rod
- Rechargeable Battery Pack (or AA battery holder)
- Carrying Case
- Operator's Manual
- Manufacturer's Warranty Documentation
Job Applications
Concrete Flatwork & Slab Leveling: Set elevation benchmarks across large pour areas with consistent accuracy. The RL-H5A's wide operating range eliminates the need to reposition the instrument on most residential and commercial slab projects.
Site Grading & Earthwork: Use the dual-grade capability to establish drainage slopes, road crowns, or parking lot grades in a single instrument setup. Pair with a grade rod and the included detector for efficient machine control or manual grade checking.
Foundation Layout & Elevation Transfer: Quickly transfer benchmark elevations around a building perimeter for foundation forming, ensuring consistent footing depths and eliminating costly errors before the pour.
Agricultural & Land Leveling: The RL-H5A's long operating range and rugged IP66-rated housing make it a reliable choice for large-scale agricultural grading and irrigation slope projects in open field environments.
Compatible Accessories
Frequently Asked Questions
- Does the Topcon RL-H5A DB work outdoors in bright sunlight?
- Yes. While the laser beam may not be visible to the naked eye in direct sunlight, the included LS-80L laser detector is specifically designed to pick up the beam outdoors. The system is rated for use up to 800 meters in diameter with detector, making it fully practical for large outdoor jobsites.
- What does the "DB" designation mean on the RL-H5A?
- "DB" stands for Dual Beam, indicating that this version of the RL-H5A supports dual-grade slope settings on both the X and Y axes simultaneously. This allows contractors to dial in complex grade planes for drainage, road crowning, and sloped slab work without repositioning the instrument.
- Is the Topcon RL-H5A compatible with machine control systems?
- The RL-H5A is primarily a manual-grade laser, well-suited for grade rod and detector work on construction sites. While it is not a dedicated machine control laser, it can be used with compatible grade checkers. For full machine control integration, Topcon offers specialized systems — contact Express Tools for guidance.
- How long do batteries last on the RL-H5A, and what type does it use?
- The RL-H5A operates on 4 standard AA alkaline batteries and delivers approximately 100 hours of continuous operation per set. A rechargeable battery pack option is also available. This exceptional battery life means fewer interruptions on long job days and reduced operating costs over the instrument's lifespan.
