The Topcon RL-H5A Rotary Laser Level Kit (1035260-01) delivers professional-grade horizontal plane accuracy for contractors who need reliable grade control, elevation management, and layout performance across demanding job sites. Engineered as a complete, field-ready solution, this kit pairs the RL-H5A laser head with the LS-80X digital receiver, rechargeable battery system, measuring rod, and heavy-duty tripod—so your crew steps on site and starts working immediately, no additional sourcing required.
Overview & Jobsite Applications
The RL-H5A is purpose-built for horizontal leveling applications where precision and uptime matter. Its automatic self-leveling compensator settles the instrument fast, reducing setup time between moves. With a working range of up to 800 meters in diameter when paired with the LS-80X receiver, the RL-H5A handles everything from small residential pads to large commercial earthwork spreads. The variable-speed rotation (from slow scan to 600 RPM) adapts to both fine-detail layout and high-visibility machine-grade operations.
Key Specifications
- Self-Leveling Range: ±5° automatic horizontal compensation
- Accuracy: ±1mm at 10m (±3/32" at 30ft)
- Working Diameter: Up to 800m with LS-80X receiver
- Rotation Speed: 0–600 RPM variable
- IP Rating: IP66 dust and water resistant
- Battery Life: Up to 100 hours on rechargeable battery pack
- Laser Class: Class 3R, 635nm red beam
- Operating Temperature: -20°C to +50°C (-4°F to 122°F)
- Tripod Thread: 5/8" x 11
What's in the Kit
- Topcon RL-H5A Rotary Laser Head — self-leveling horizontal plane laser with out-of-level alarm
- LS-80X Digital Receiver — wide 80mm detection window with audible and visual grade indicators
- Rechargeable Battery Pack & Charger — up to 100-hour runtime eliminates AA battery dependency on long jobs
- Measuring Rod — graduated reference staff for elevation checks and rod readings
- Heavy-Duty Tripod — adjustable aluminum tripod with 5/8" x 11 thread for stable instrument mounting
- Carrying Case — molded hard-shell case for organized, protected transport
Job Applications
Earthwork & Site Grading: Establish and hold cut/fill grade references across large earthwork areas. The long working range and high-visibility receiver keep equipment operators and grade checkers in sync without repeated instrument moves.
Concrete Flatwork & Slabs: Set screed rails, check pour elevation, and verify finished slab elevation at multiple points across the deck. The ±1mm accuracy at 10m keeps flatwork within spec on residential and commercial pours alike.
Drainage & Utility Installation: Reference consistent elevation benchmarks along trench runs for storm drain, sewer, and utility conduit installation. The wide receiver window makes it easy for a single operator to check invert elevation without a second person at the instrument.
Foundation Layout & Footing Elevation: Transfer elevation from a known benchmark to footing forms quickly and repeatedly. The automatic leveling and out-of-level alarm ensure the instrument hasn't been disturbed between readings on active sites.
Compatible Accessories
- Topcon LS-80X Replacement Receiver
- Topcon RC-40 Remote Control Unit
- Topcon Universal Laser Detector Clamp
- Replacement Rechargeable Battery Pack for RL-H5A
- Heavy-Duty Aluminum Grade Rod — 13ft Telescoping
- Laser Level Tripod — Dual-Clamp Professional Series
Related Guides
- How to Set Grade with a Rotary Laser Level — Contractor's Field Guide
- Rotary Laser vs. Line Laser: Choosing the Right Tool for Your Job
- RL-H5A Setup & Calibration Tips for Concrete Flatwork
- Understanding Laser Receiver Range and When You Need It
Frequently Asked Questions
- Does the Topcon RL-H5A work outdoors in bright sunlight?
- Yes. The RL-H5A is designed for outdoor use and works at its full rated range when paired with the included LS-80X receiver. The receiver detects the laser beam electronically, so direct sunlight that makes the beam invisible to the naked eye does not affect receiver performance. For visibility without a receiver, shaded or indoor conditions are recommended.
- What is the self-leveling range of the RL-H5A, and what happens if the instrument is set up out of level?
- The RL-H5A automatically compensates for out-of-level conditions within a ±5° range. If the instrument is set up beyond that window, the out-of-level alarm activates and the laser shuts off to prevent inaccurate readings. Simply re-level the tripod until the alarm clears and the beam resumes.
- Can the RL-H5A be used for slope or grade applications?
- The RL-H5A is a horizontal-only rotary laser and does not offer manual slope or dual-axis grade capability. For applications requiring a set percentage of slope—such as drainage swales or sloped slabs—consider the Topcon RL-SV2S or a comparable dual-grade instrument. The RL-H5A excels at flat, horizontal plane work.
- How long does the rechargeable battery last, and can alkaline batteries be used as a backup?
- The included rechargeable battery pack provides up to 100 hours of continuous runtime under normal operating conditions. The RL-H5A also accepts standard AA alkaline batteries as a backup power source, giving you flexibility on extended jobs or when recharging access is limited on remote sites.
Frequently Asked Questions
Does the Topcon RL-H5A work outdoors in bright sunlight?
Yes. The RL-H5A is designed for outdoor use and works at its full rated range when paired with the included LS-80X receiver. The receiver detects the laser beam electronically, so direct sunlight that makes the beam invisible to the naked eye does not affect receiver performance. For visibility without a receiver, shaded or indoor conditions are recommended.
What is the self-leveling range of the RL-H5A, and what happens if the instrument is set up out of level?
The RL-H5A automatically compensates for out-of-level conditions within a ±5° range. If the instrument is set up beyond that window, the out-of-level alarm activates and the laser shuts off to prevent inaccurate readings. Simply re-level the tripod until the alarm clears and the beam resumes.
Can the RL-H5A be used for slope or grade applications?
The RL-H5A is a horizontal-only rotary laser and does not offer manual slope or dual-axis grade capability. For applications requiring a set percentage of slope—such as drainage swales or sloped slabs—consider the Topcon RL-SV2S or a comparable dual-grade instrument. The RL-H5A excels at flat, horizontal plane work.
How long does the rechargeable battery last, and can alkaline batteries be used as a backup?
The included rechargeable battery pack provides up to 100 hours of continuous runtime under normal operating conditions. The RL-H5A also accepts standard AA alkaline batteries as a backup power source, giving you flexibility on extended jobs or when recharging access is limited on remote sites.
