RL-H5A Self-Leveling Laser PS.DB Kit with LS-100D Receiver, Alkaline Batteries, Grade Rod TENTHS and Tripod

The Topcon RL-H5A 1021200-17-K1 is a complete, job-ready rotary laser package built for contractors who demand reliable horizontal grade control on grading, concrete, and general site work. This kit pairs Topcon's industry-proven RL-H5A self-leveling rotary laser with the LS-100D digital receiver, a tenths-calibrated grade rod, a sturdy tripod, and an alkaline battery pack — everything needed to set up accurate elevation references straight out of the box. The decimal tenths format on the grade rod enables direct elevation calculations without conversion, streamlining communication between operators and spec documents on any project requiring precise elevation compliance.

Overview & Jobsite Applications

The RL-H5A is engineered for demanding outdoor environments where accuracy, speed, and durability are non-negotiable. Its self-leveling pendulum mechanism automatically compensates for minor setup variations, getting the laser beam level and rotating within seconds. With a working range of up to 800 meters in diameter when paired with the included LS-100D receiver, this system covers large commercial pads, highway grading corridors, and agricultural land-leveling operations with equal confidence. The kit's alkaline battery compatibility means power is always available on remote sites where rechargeable infrastructure isn't practical.

Key Specifications

• Model: Topcon RL-H5A
• SKU / Part Number: 1021200-17-K1
• Self-Leveling Range: ±5°
• Leveling Accuracy: ±10 arc seconds
• Working Diameter: Up to 800 m (with LS-100D receiver)
• Rotation Speed: 600 RPM
• Laser Class: Class 3R, 635 nm visible red
• IP Rating: IP66 — dust-tight and protected against heavy water jets
• Battery Type: Alkaline (AA) — included in kit
• Operating Temperature: -20°C to +50°C (-4°F to +122°F)
• Grade Rod Calibration: Decimal tenths (0.1 ft increments)

What's in the Kit

• Topcon RL-H5A Rotary Laser: Self-leveling horizontal laser with IP66 weather resistance and out-of-level warning alarm
• LS-100D Digital Receiver: Long-range detector with digital readout and audible/visual grade indicators for single-person operation
• Grade Rod (Tenths Calibration): Decimal-marked staff for direct elevation reading without unit conversion — ideal for civil and concrete specs
• Tripod: Heavy-duty contractor tripod for stable, adjustable height setup on uneven ground
• Alkaline Battery Pack: Field-ready power supply compatible with standard AA batteries available at any hardware or supply store
• Carrying Case: Protective storage and transport case for all kit components

Job Applications

Concrete Flatwork & Slab Pours: Establish consistent screed elevation references across large pour areas. The LS-100D receiver clips to a screed or rod for hands-free grade checking, keeping slab thickness within spec and reducing costly over-pours.

Site Grading & Earthwork: Set cut-and-fill elevations across wide grading corridors. The 800 m working diameter means a single instrument setup covers an entire building pad or detention basin without relocating the instrument.

Underground Utility & Drainage Installation: Verify pipe invert elevations and trench bottom grades. The tenths rod format aligns directly with civil drawings expressed in decimal feet, reducing transcription errors during layout.

Agricultural Land Leveling: Use the RL-H5A's long range and robust IP66 housing to maintain consistent field slope across large acreage, improving irrigation efficiency and drainage uniformity.

Compatible Accessories

• Topcon LS-100D Replacement Receiver
• Topcon RC-400 Remote Control for RL-H5A
• Rechargeable Battery Pack for Topcon RL Series
• Topcon Aluminum Grade Rod Extensions
• Universal Laser Receiver Bracket / Rod Clamp
• Heavy-Duty Fiberglass Tripod — Contractor Grade

Related Guides

• How to Set Up a Rotary Laser for Concrete Flatwork
• Reading a Tenths Grade Rod: Field Guide for Contractors
• RL-H5A vs. RL-H4C: Which Topcon Laser Is Right for Your Job?
• Laser Level Buyer's Guide: Rotary vs. Line Lasers for Site Work

Frequently Asked Questions

Does the Topcon RL-H5A work outdoors in direct sunlight?

Yes. The RL-H5A is designed for outdoor use. In bright sunlight conditions, the included LS-100D digital receiver detects the laser beam far beyond the range of the naked eye — up to 400 m radius — making the system fully functional on open jobsites without shade requirements.

What does the tenths calibration on the grade rod mean?

The grade rod included in this kit is graduated in decimal tenths of a foot (0.1 ft increments). This format matches the elevation units used on most civil engineering and concrete placement drawings in the United States, allowing operators to read and verify grades directly against plan sheets without converting from fractions.

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

The RL-H5A is a horizontal (flat) self-leveling laser and does not have a built-in grade/slope mode. For single or dual-axis grade applications, Topcon's RL-SV2S or similar slope-capable models are recommended. This kit is optimized for level horizontal plane control on grading and concrete work.

Is the RL-H5A kit covered by a warranty?

Topcon provides a standard manufacturer's warranty on the RL-H5A instrument. As an authorized Topcon dealer, Express Tools supports warranty claims and factory service routing. Contact our team for warranty registration assistance or service inquiries after purchase.