Professional Rotary Laser System Ready for the Jobsite
The Topcon RL-H5B DB2 kit delivers a complete, matched grading laser system straight out of the box. Designed for contractors, survey crews, and earthwork operators who demand accuracy and reliability, this package pairs the proven RL-H5B rotary laser with the LS-80L machine control receiver, a tenths-graduated grade rod, and a heavy-duty aluminum tripod. Every component is factory-matched so your team spends time working—not improvising field solutions. Whether you are setting drainage grades, establishing foundation elevations, or controlling site fill, this kit handles the full workload without supplemental purchases.
Laser System Overview & Jobsite Applications
The RL-H5B is Topcon's workhorse horizontal rotary laser, trusted on commercial grading projects, residential site work, interior concrete pours, and agricultural leveling operations. Its self-leveling compensator automatically corrects for minor setup variations, and the rugged housing withstands the dust, vibration, and moisture exposure common on active construction sites. The included LS-80L receiver extends your working range and provides clear audible and visual grade signals for rod-and-level work or machine-mounted applications. The tenths rod gives survey-standard readability for crews accustomed to decimal-foot measurements, while the aluminum tripod provides a stable, portable mounting platform for any setup condition.
Key Specifications
- Laser Class: Class IIIa (FDA/CDRH), Class 3R (IEC)
- Accuracy: ±1.5 arc seconds (1/16" at 100 ft)
- Self-Leveling Range: ±5 degrees automatic compensation
- Operating Range: Up to 2,600 ft diameter with LS-80L receiver
- Rotation Speed: 300, 600, or 900 RPM selectable
- Battery Life: Up to 100 hours on D-cell alkaline batteries
- IP Rating: IP66 water and dust resistant laser head
- Grade Rod: Tenths graduation, aluminum construction
- Tripod: Aluminum, adjustable, standard 5/8" x 11 thread
What's in the Kit
- Topcon RL-H5B Self-Leveling Rotary Laser
- LS-80L Laser Receiver with rod clamp and carrying case
- Tenths-Graduated Aluminum Grade Rod
- Heavy-Duty Aluminum Tripod
- RC-40 Wireless Remote Control
- D-Cell Battery Holder
- Carrying Case for laser and receiver
- Operator's Manual and Calibration Certificate
Job Applications
Site Grading & Earthwork: Set the RL-H5B on the tripod at a central hub, dial in your design elevation, and run the LS-80L receiver on the grade rod or machine mast to control cut and fill across the entire site. The 2,600 ft operating diameter means fewer instrument moves on large pads.
Foundation & Footing Layout: Use the tenths rod and receiver to set batter board elevations and verify footing depths to survey-grade precision. The ±1.5 arc second accuracy keeps structural tolerances tight from first pour to finish grade.
Interior Concrete & Flatwork: Mount the laser indoors on the tripod for slab-on-grade control, suspended slab elevation checks, or setting screeds. The selectable rotation speed allows you to reduce RPM in confined spaces for easier rod pickup.
Drainage & Utility Installation: Establish consistent invert elevations for pipe runs and storm structures by reading the grade rod against a fixed laser plane. Tenths graduation makes decimal-foot pipe slope calculations direct and error-free.
Compatible Accessories
- Topcon RC-40 Wireless Remote Control — Adjust rotation speed and scan mode from up to 330 ft away
- Topcon LS-80X Machine Control Receiver — Heavy-duty receiver for dozer and motor grader cab mounting
- Topcon Wall Mount Bracket — Interior mounting for concrete and masonry applications
- Grade Rod Extension Sections — Extend rod height for deep cut applications
- Replacement D-Cell Battery Pack — Topcon OEM battery holder for field swaps
Related Guides
- How to Set Up a Rotary Laser on a Tripod — Step-by-Step Guide
- Reading a Tenths Grade Rod: A Contractor's Reference
- RL-H5B vs. RL-H4C: Which Topcon Laser Is Right for Your Project?
- Machine Control vs. Manual Rod Work: Choosing the Right Receiver
Frequently Asked Questions
- Does this kit include everything needed to start grading immediately?
- Yes. The RL-H5B DB2 kit includes the rotary laser, LS-80L receiver, tenths grade rod, aluminum tripod, and RC-40 remote. You only need D-cell batteries to begin working. No additional equipment purchases are required for standard horizontal grading applications.
- What is the maximum working range of this laser system?
- With the included LS-80L receiver, the RL-H5B operates up to 2,600 feet in diameter (1,300 ft radius) under typical outdoor conditions. Working range may be reduced in direct sunlight at extreme distances; the receiver's sunlight mode helps maintain signal in bright conditions.
- Can the RL-H5B be used for interior flatwork and concrete screeds?
- Absolutely. The RL-H5B's selectable rotation speed and compact tripod-mounted setup make it well-suited for interior slab pours, screed rail elevation, and structural floor checks. The self-leveling compensator ensures a true horizontal plane regardless of subfloor irregularities within the ±5 degree leveling range.
- Is the RL-H5B compatible with machine control systems on dozers or graders?
- The RL-H5B works with the LS-80L receiver included in this kit for single-receiver machine guidance. For dual-receiver blade control or full 3D machine control integration, Topcon's LS-80X or dedicated machine control receivers are recommended. Contact Express Tools for machine control configuration options.
