RL-H5A Self-Leveling Laser PS.RB Kit with LS-100D Receiver and Rechargeable Batteries

Topcon RL-H5A Rotary Laser with LS-100D Digital Receiver Kit

The Topcon RL-H5A RS kit paired with the LS-100D digital receiver delivers the precision and durability that grading, excavation, and concrete flatwork contractors demand on every job. With a ±10° automatic self-leveling range, IP66-rated weather resistance, and a digital receiver that displays exact elevation variance in feet and inches, this kit eliminates guesswork and keeps your crew working accurately — even in bright outdoor conditions or dusty environments. Whether you're setting subgrade on a road project or checking floor flatness on a commercial slab, the RL-H5A gives you the confidence of a trusted professional instrument.

Overview & Jobsite Applications

The RL-H5A is Topcon's flagship horizontal rotary laser, purpose-built for outdoor construction crews. Its high-powered diode delivers a visible beam readable up to 2,600 feet in diameter with the LS-100D receiver, making it effective for large-scale earthwork, utility trenching, and site development. The instrument mounts to any standard 5/8"-11 tripod thread and begins self-leveling within seconds of placement. The LS-100D receiver features a large LCD readout showing numeric cut/fill values, so rod operators always know exactly how much adjustment is needed without walking back to the instrument or estimating off an audio beep.

Key Specifications

• Model: Topcon RL-H5A RS (SKU: 1021200-16)
• Leveling Method: Automatic self-leveling (pendulum)
• Self-Leveling Range: ±10°
• Accuracy: ±1.5mm at 30m (±1/16" at 100 ft)
• Operating Range: Up to 800m diameter (2,600 ft) with LS-100D receiver
• Rotation Speed: 600 RPM standard; variable speed options available
• Power: Rechargeable battery pack (included); up to 60 hours runtime
• Weather Rating: IP66 — dust-tight and protected against heavy water jets
• Receiver: LS-100D digital receiver with numeric LCD elevation display
• Mounting Thread: 5/8"-11 standard
• Operating Temperature: -20°C to +50°C (-4°F to +122°F)

What's in the Kit

• Topcon RL-H5A rotary laser instrument
• LS-100D digital grade rod receiver with LCD display
• Rechargeable battery pack
• AC wall charger
• Carrying case
• Operator's manual

Job Applications

Earthwork & Grading: Set cut and fill elevations across large sites with a single instrument setup. The LS-100D's numeric readout lets operators confirm grade in real time without radio communication back to the survey crew.

Concrete Flatwork: Maintain consistent slab thickness and floor elevation during screeding and forming operations. The ±1.5mm accuracy at 30m ensures flatness tolerances are met for commercial and industrial floors.

Utility & Drainage Trenching: Establish consistent pipe grade and invert elevations in trenches where level and plumb must be verified quickly at depth.

Foundation & Footing Layout: Verify footing elevations and set batter boards to elevation during residential and commercial foundation work, reducing instrument moves and improving crew productivity.

Compatible Accessories

• Topcon LS-100D Replacement Receiver
• Topcon RC-40 Remote Control for RL-H5A
• Topcon Rechargeable Battery Pack for RL-H5A
• Heavy-Duty Laser Tripod — 5/8"-11 Thread
• Aluminum Grade Rod — 13 ft Telescoping
• Magnetic Grade Rod Clamp for LS-100D Receiver

Related Guides

• How to Set Up a Rotary Laser Level on a Job Site
• Rotary Laser vs. Line Laser: Which Do Contractors Need?
• Understanding Laser Receiver Readings: Cut, Fill & On-Grade
• Topcon RL-H5A vs. RL-H4C: What's the Difference?

Frequently Asked Questions

Does the RL-H5A work in direct sunlight?

Yes. The RL-H5A is designed for outdoor use and is most effective when used with the included LS-100D receiver, which detects the laser beam reliably in bright sunlight up to 800m diameter range. The laser beam is not visible to the naked eye at long distances in daylight, so receiver-based operation is standard practice on outdoor jobsites.

What is the battery life on the RL-H5A rechargeable pack?

The included rechargeable battery pack provides up to 60 hours of continuous operation under normal conditions. A full recharge takes approximately 8 hours using the included AC wall charger. The instrument also accepts standard D-cell batteries as a backup power option.

Can the RL-H5A be used for slope or grade work?

The standard RL-H5A operates in horizontal (level) mode only. For contractors requiring grade percentage or dual-axis slope capability, Topcon offers the RL-SV2S and RL-200 series instruments. The RL-H5A is ideal for horizontal elevation work including grading to a flat plane, concrete flatwork, and elevation layout.

Is the LS-100D receiver compatible with other Topcon lasers?

The LS-100D is compatible with all Topcon RL-series horizontal rotary lasers. It is not designed for use with competing brands' laser instruments. For multi-brand jobsite environments, Express Tools carries universal receivers — contact our team for guidance on compatible options.