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Overview
The Topcon RL-H5A Self-Leveling Laser PS.RB Kit (1021200-06-K2) delivers horizontal and vertical leveling for general construction, concrete work, and interior finish applications. This complete package serves contractors running multi-day projects who need rechargeable power, inches-marked measurement capability, and detection range extending to 800 feet diameter. The kit pairs Topcon's reliable RL-H5A laser head with the LS-80L receiver, alkaline/rechargeable battery options, tripod, and inches-graduated measuring rod—eliminating conversion calculations and providing immediate operational readiness. Designed for concrete contractors, framing crews, and mechanical trades working from imperial-unit drawings, this configuration reduces battery procurement cycles while maintaining the accuracy and durability expected from Topcon's construction laser platform.
Key Specifications
- Self-Leveling Range: ±5 degrees
- Leveling Accuracy: ±1/16 inch at 100 feet (±1.5mm at 30m)
- Working Diameter: 800 feet (245m) with LS-80L receiver
- Rotation Speed: 600 RPM
- Environmental Rating: IP66 dust-tight and water-resistant
- Power Options: 4× D-cell alkaline or rechargeable NiMH batteries (DB-74 included)
- Battery Life: 100+ hours alkaline, 60+ hours rechargeable
- Operating Temperature: -4°F to 122°F (-20°C to 50°C)
- Laser Wavelength: 635nm visible red beam
- Weight: 6.2 lbs (2.8kg) laser head only
What's in the Kit
- RL-H5A Laser Level: Horizontal self-leveling rotary laser with manual vertical axis lock and slope mode
- LS-80L Laser Receiver: 2-sided clamp-mount detector with LCD display, audio alert, and front/back sensors
- DB-74 Rechargeable Battery Pack: NiMH rechargeable battery system with charger, eliminating disposable D-cell purchases
- Alkaline Battery Holder: 4× D-cell tray for backup power or initial operation before recharge
- Inches Measuring Rod: Telescoping grade rod with imperial unit graduations for direct measurement transfer from US construction documents
- Aluminum Tripod: Adjustable-height mounting platform with quick-clamp laser attachment
- Hard Carrying Case: Impact-resistant storage with custom foam interior protecting all components
- RC-60 Remote Control: Wireless laser operation from up to 150 feet for single-operator leveling tasks
- Instruction Manual: Setup, calibration, and troubleshooting documentation
Job Applications
- Concrete Slab Pours: Set formwork elevation and verify deck level across large areas without string lines, maintaining ±1/16-inch accuracy for specification compliance.
- Drop Ceiling Installation: Establish consistent grid height throughout commercial interiors using receiver-equipped grade rod, eliminating cumulative measurement error.
- Foundation Excavation: Check depth and base elevation at multiple points simultaneously with 800-foot detection range covering entire residential foundations.
- Deck and Patio Leveling: Set slope for drainage with manual grade adjustment, using receiver audio alerts to confirm elevation targets without constant visual checks.
- Metal Framing Layout: Mark track elevations for wall framing in commercial buildings, with inches-marked rod matching architect drawings directly.
- Utility Trenching: Monitor ditch grade and depth for plumbing and electrical conduit, with IP66 rating protecting against dust and spray exposure.
Compatible Accessories
Expand system capability with these Topcon-compatible accessories:
- Topcon LS-100D Receiver – Extended 1,600-foot range with digital LCD readout
- Topcon RC-200 Remote Control – Advanced wireless control with slope adjustment capability
- Additional DB-74 Battery Packs: Maintain continuous operation with backup rechargeable batteries during charging cycles
- Heavy-Duty Elevating Tripod – 360-degree leveling head and 5-to-8-foot height adjustment for uneven terrain
- Magnetic Laser Target Plates – Visual reference for alignment work where receiver mounting isn't practical
Related Guides
- How to Calibrate a Rotary Laser Level – Verify RL-H5A accuracy before critical layout work
- Topcon RL-H5A vs. Spectra LL300 Comparison – Side-by-side feature analysis for horizontal laser selection
- Laser Detector Positioning Techniques – Maximize LS-80L receiver performance in bright conditions
- Laser Level Won't Self-Level Troubleshooting – Diagnose and resolve pendulum lock or out-of-range issues
Frequently Asked Questions
- Can the RL-H5A be used for single-axis slope work like drainage grading?
- Yes. The RL-H5A features manual axis slope capability, allowing you to set grade using the fine-adjustment controls on the laser head. The receiver provides audio feedback as you move along the slope path. For dual-axis slope applications, consider upgrading to the RL-SV2S model with electronic slope control.
- What's the detection range difference between sunny and overcast conditions?
- With the LS-80L receiver, expect 800-foot diameter range in overcast or indoor conditions. Bright sunlight reduces effective range to approximately 400-500 feet diameter. Using laser-enhancing glasses or working during dawn/dusk hours extends outdoor performance. The receiver's sensitivity settings optimize detection based on ambient light conditions.
- How does the rechargeable battery runtime compare to alkaline D-cells?
- Alkaline D-cells provide 100+ hours of continuous operation, while the DB-74 rechargeable pack delivers 60+ hours per charge. The rechargeable option eliminates battery purchasing costs after 3-4 charge cycles. Many contractors keep both battery holders charged for uninterrupted multi-day projects, swapping packs during lunch breaks.
- Is the included tripod height sufficient for excavation depth checking?
- The kit tripod extends to approximately 5.5 feet, adequate for most residential foundation and flatwork applications. For deeper excavation monitoring or working over obstruction height, an elevating tripod extending to 8+ feet provides better line-of-sight. The laser's 5/8×11 mounting thread accepts all standard survey tripods.
