Topcon RL-H5A Self-Leveling Laser PS.DB Kit with LS-80X Receiver, Measuring Rod INCHES and Tripod - 1035259-01 Alkaline

Overview

The Topcon RL-H5A PS.DB Kit (1035259-01) delivers professional-grade horizontal leveling for contractors who measure in inches and fractions rather than decimal tenths. This alkaline-powered rotary laser system arrives job-ready with the LS-80X digital receiver, an inches-calibrated measuring rod, and a standard tripod—everything required for elevation transfer, excavation depth control, and foundation layout on commercial and residential job sites. General contractors, site preparation crews, concrete subcontractors, and landscaping professionals rely on this configuration when specifications call for fractional measurements or when coordinating with trades accustomed to imperial notation. The PS.DB designation indicates the included alkaline battery pack and basic detector package, making this the most economical entry point into Topcon's H5A platform.

Key Specifications

• Self-Leveling Range: ±5 degrees (manual leveling to 10 degrees)
• Leveling Accuracy: ±1.7mm per 30m (±1/16" at 100 feet)
• Working Diameter: 800m (2,600 feet) with LS-80X receiver
• Rotation Speed: 600 RPM (fixed)
• Environmental Protection: IP66 dust-tight and water-resistant
• Power Source: Four D-cell alkaline batteries (included); 100+ hours runtime
• Operating Temperature: -4°F to 122°F (-20°C to 50°C)
• Weight: 5.3 lbs (2.4 kg) laser only; complete kit 18 lbs
• Beam Type: Class 2 visible red laser diode (635nm)

What's in the Kit

• Topcon RL-H5A Rotary Laser: Main horizontal leveling instrument with motorized self-leveling mechanism and 600 RPM rotation head
• LS-80X Digital Laser Receiver: Eight-channel millimeter-accuracy detector with LCD display, audible tones, and magnetic rear mounting
• Measuring Rod (Inches Calibration): Extendable grade rod marked in feet, inches, and fractional increments for traditional measurement workflows
• Aluminum Tripod: Fixed-leg tripod with 5/8"-11 threaded mount and adjustable height range 36" to 60"
• Four D-Cell Alkaline Batteries: Factory-installed power source providing 100+ hours continuous operation
• Soft-Sided Carrying Case: Padded transport case with interior compartments for laser, receiver, and accessories
• User Manual and Calibration Certificate: Documentation package including factory calibration data and operational instructions

Job Applications

• Foundation Layout and Formwork: Establish consistent footing depths and verify level pour heights across residential and commercial foundations where structural drawings specify fractional tolerances.
• Site Excavation and Grading: Control cut and fill operations by providing a fixed horizontal reference plane that equipment operators use to verify depth against benchmark elevations.
• Concrete Slab Preparation: Set screed rails and verify subgrade elevation before pouring interior slabs, garage floors, or warehouse deck systems requiring tight level specifications.
• Suspended Ceiling Installation: Transfer elevation points around room perimeters and verify grid system alignment in commercial interiors where laser-based layout accelerates installation versus water levels.
• Exterior Drainage and Landscaping: Establish grade stakes for swale construction, French drain installation, and retaining wall benchmarks where consistent elevation control prevents water management failures.
• Utility Trench Slope Verification: Monitor trench bottom elevation during sewer, water, and electrical conduit installation to maintain required fall rates across extended runs.

Compatible Accessories

Upgrade or replace components with these verified-compatible Topcon accessories:

• Topcon LS-100D Digital Receiver – Premium detector with remote display capability and extended range
• Topcon RC-40 Remote Control – Wireless slope control for RL-H5A when upgraded firmware installed
• Topcon 16-Foot Inches Grade Rod – Extended reach measuring rod for deep excavations
• Heavy-Duty Aluminum Laser Tripod – Reinforced tripod for high-traffic zones requiring greater stability
• Topcon DB-74 Rechargeable Battery Pack – Lithium-ion alternative to alkaline cells with charging cradle

Related Guides

• How to Set Up and Calibrate a Rotary Laser Level for Site Work
• Topcon RL-H5A vs Spectra LL300N: Horizontal Laser Comparison
• Laser Receiver Mounting and Detection Best Practices
• Troubleshooting: Rotary Laser Won't Self-Level or Flashing Error

Frequently Asked Questions

Can I use this laser for vertical layout or plumb applications?

No. The RL-H5A is horizontal-only and cannot be tilted to project vertical planes. For wall layout, door alignment, or vertical plumb work, consider the Topcon RL-VH5A combination laser which offers both horizontal and vertical modes.

What's the difference between the PS.DB and PS.RB kit configurations?

The PS.DB version includes alkaline D-cell batteries and basic accessories, while the PS.RB configuration ships with the rechargeable DB-74 lithium battery pack and charging cradle. Both use the identical RL-H5A laser head and LS-80X receiver. The rechargeable version costs approximately $150 more but eliminates ongoing battery purchases for high-use contractors.

How do I convert measurements from the inches rod to decimal feet for my site plan?

The inches-marked rod displays measurements as feet and fractional inches (e.g., 4' 7-1/2"). To convert to decimal feet, divide the inch portion by 12. Example: 7.5 inches ÷ 12 = 0.625 feet, so 4' 7-1/2" equals 4.625 decimal feet. Many contractors keep a conversion chart on-site or use the calculator function on the LS-80X receiver for quick reference.

What is the realistic working range with the LS-80X receiver on a bright job site?

In full sunlight, expect reliable detection to approximately 400-500 feet diameter. The maximum 2,600-foot range applies to low-light conditions (overcast days, dawn/dusk, or interior work). Bright ambient light washes out the laser beam beyond mid-range distances. For extended-range work in bright conditions, upgrade to the LS-100D receiver or work during early morning and late afternoon hours when sun angle is less direct.