Can the RL-H5A be used with a laser detector on a dozer or excavator blade?

Yes. The LS-80L receiver includes a magnetic mount and can be attached to machine-mounted grade rods or masts for basic machine control applications. For dedicated excavation work, consider a machine-mount receiver with larger detection window and digital readout visible from the cab.

How long does it take to fully charge the rechargeable battery?

The included Ni-MH battery pack reaches full charge in approximately 10-12 hours using the supplied AC charger. For continuous operation, consider purchasing a second battery pack to swap in while the first recharges overnight.

What's the difference between the RL-H5A and the RL-H5B model?

The RL-H5A is horizontal-only, while the RL-H5B adds vertical beam capability for layout, plumb work, and 90-degree applications. Both share the same accuracy specification and leveling system.

Is the LS-80L receiver compatible with other Topcon laser models?

Yes. The LS-80L is a universal receiver compatible with all Topcon rotating lasers operating on standard red beam wavelengths, including the RL-H4C, RL-H5B, and RL-SV2S. It will also detect most competitive rotary laser brands.

Topcon RL-H5A Rotary Laser Rechargeable

Description

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Overview

The Topcon RL-H5A PS.RB Kit (1021200-06-K1) delivers professional-grade rotary laser performance for contractors, site supervisors, and concrete crews managing multi-day grading, foundation, and leveling projects. This complete system includes the RL-H5A self-leveling rotary laser with rechargeable battery system, LS-80L digital receiver, aluminum tripod, and tenths-graduated measuring rod—everything needed for accurate horizontal reference work across residential, commercial, and light civil applications. The rechargeable battery configuration eliminates the recurring cost of alkaline cells on extended assignments, making it ideal for crews running consecutive pours, finish grading operations, or ongoing site development where the laser operates daily for weeks at a time. This kit balances affordability with professional-level accuracy and durability for contractors who need reliable elevation control without the complexity of dual-grade systems.

Key Specifications

Leveling Method: Automatic self-leveling (pendulum compensator)
Self-Leveling Range: ±5 degrees
Leveling Accuracy: ±1.5mm at 10 meters (±3/32" at 100 feet)
Working Diameter: 800 meters (2,600 feet) with LS-80L receiver
Rotation Speed: 600 RPM
Power Source: Rechargeable Ni-MH battery pack (included)
Battery Life: Up to 100 hours per charge
Environmental Rating: IP66 (dust-tight, water-resistant)
Operating Temperature: -4°F to 122°F (-20°C to 50°C)
Unit Weight: 5.1 lbs (2.3 kg) with battery

What's in the Kit

Topcon RL-H5A Rotary Laser: Single-grade horizontal laser head with automatic leveling and out-of-level alert
Rechargeable Ni-MH Battery Pack: Field-swappable power module delivering up to 100 hours runtime
AC Battery Charger: 110V wall charger with indicator lights for overnight or between-shift charging
LS-80L Laser Receiver: Digital detector with LCD display, audible tones, and magnetic mount for rod work
RC-40 Remote Control: Handheld wireless controller for rotation speed adjustment and power functions
Aluminum Tripod: Adjustable-height tripod with 5/8"-11 threaded head mount
Measuring Rod (10ths): Telescoping grade rod marked in decimal feet and tenths for quick elevation readings
Soft Carrying Case: Padded case with compartments for laser, receiver, and accessories
Operator Manual: Setup, calibration, and maintenance documentation

Job Applications

Residential Foundation Pours: Establish consistent elevation for footing forms and slab screeds, ensuring level concrete placement across the entire footprint without string lines.
Finish Grading and Site Prep: Set cut/fill references for skid steer operators and grade crews working to design elevations on lots, pads, and parking areas.
Concrete Slab and Deck Work: Guide screed rails and laser screeds during large-area flatwork, maintaining specification tolerance across commercial floors and exterior flatwork.
Exterior Drainage and Swales: Verify positive drainage slopes and establish invert elevations for perimeter drains, French drains, and surface water management features.
Retaining Wall Installation: Set consistent top-of-wall elevation references for modular block, timber, or segmental retaining wall systems on sloped terrain.
Drop Ceiling and Suspended Grid: Transfer level reference marks around interior spaces for consistent ceiling height and HVAC soffit framing in commercial tenant improvements.

Compatible Accessories

Expand system capability with these field-tested accessories:

Topcon LS-100D Receiver – Extended-range detector with remote display capability
Topcon Red Beam Laser Glasses – High-visibility eyewear for outdoor beam spotting
Topcon Tribrach Adapter – Mount laser on surveying tripods with standard optical tribrachs
SECO 25' Aluminum Grade Rod – Professional-grade measuring rod with larger, high-contrast graduations
Heavy-Duty Aluminum Tripod – Reinforced tripod for windy conditions or uneven terrain

Related Guides

How to Calibrate a Rotary Laser Level – Step-by-step accuracy verification procedures
Topcon RL-H5A vs Spectra LL300 Comparison – Feature and price analysis of competing horizontal lasers
Extending Rechargeable Laser Battery Life – Maintenance practices that maximize battery performance
Troubleshooting: Rotary Laser Won't Self-Level – Common causes and field fixes for leveling failures

Frequently Asked Questions

Can the RL-H5A be used with a laser detector on a dozer or excavator blade?: Yes. The LS-80L receiver includes a magnetic mount and can be attached to machine-mounted grade rods or masts for basic machine control applications. For dedicated excavation work, consider a machine-mount receiver with larger detection window and digital readout visible from the cab.
How long does it take to fully charge the rechargeable battery?: The included Ni-MH battery pack reaches full charge in approximately 10-12 hours using the supplied AC charger. For continuous operation, consider purchasing a second battery pack to swap in while the first recharges overnight.
What's the difference between the RL-H5A and the RL-H5B model?: The RL-H5A is horizontal-only, while the RL-H5B adds vertical beam capability for layout, plumb work, and 90-degree applications. Both share the same accuracy specification and leveling system. If your work includes wall plumbing, column layout, or partition framing, the H5B provides additional versatility.
Is the LS-80L receiver compatible with other Topcon laser models?: Yes. The LS-80L is a universal receiver compatible with all Topcon rotating lasers operating on standard red beam wavelengths, including the RL-H4C, RL-H5B, and RL-SV2S. It will also detect most competitive rotary laser brands, though specific functionality may vary.

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