Topcon RL-H5B Self-Leveling Laser PS.DB2 Kit with LS-80L Receiver - 1021200-33 (uses Alkaline Batteries)

Overview

The Topcon RL-H5B Self-Leveling Laser PS.DB2 Kit (1021200-33) is built for contractors running foundation work, site grading, excavation, and concrete pours where horizontal leveling accuracy determines project quality. This complete kit includes the RL-H5B rotary laser, LS-80L laser receiver with rod clamp, rechargeable batteries, charger, hard carrying case, and calibration tools—everything needed to establish grade on day one. The alkaline battery option provides backup power flexibility when you're running multiple lasers across large sites or working in remote locations without easy access to charging. Designed for full-time construction crews, landscaping professionals, and site contractors who need reliable self-leveling performance across 600-meter diameters without constant recalibration or repositioning.

Key Specifications

• Self-Leveling Range: ±5 degrees with automatic shutoff when exceeded
• Leveling Accuracy: ±1.5mm per 30 meters (±1/16" at 100 feet)
• Working Range: 600-meter diameter with LS-80L receiver (1,000-foot radius)
• Rotation Speed: 600 RPM (manual mode variable speed available)
• Durability Rating: IP66 dust-tight and water-resistant protection
• Power Source: 4 alkaline D-cell batteries (approximately 100 hours runtime)
• Operating Temperature: -4°F to 122°F (-20°C to 50°C)
• Weight: 5.3 lbs (2.4 kg) laser unit only
• Mounting Thread: 5/8"-11 standard tripod thread

What's in the Kit

• RL-H5B Rotary Laser: Main self-leveling laser unit with horizontal beam
• LS-80L Laser Receiver: Digital receiver with LCD display showing elevation within ±1/16" accuracy
• Rod Clamp: Secures LS-80L receiver to grade rods and poles
• Rechargeable Battery Pack: NiMH battery for LS-80L receiver with extended runtime
• Battery Charger: Wall charger for receiver battery pack
• Alkaline Battery Tray: Holds 4 D-cell alkaline batteries as backup power option
• Hard Carrying Case: Impact-resistant case with custom foam cutouts for all components
• Calibration Certificate: Factory calibration documentation for quality assurance
• Instruction Manual: Setup guide with troubleshooting and maintenance procedures

Job Applications

• Foundation Layout and Excavation: Establish consistent depth across footer trenches and foundation pads where grade tolerance directly affects structural integrity and concrete volume calculations
• Concrete Slab Pours: Set screed rails and verify deck elevation across warehouse floors, driveways, and parking structures where surface flatness requirements meet FF/FL specifications
• Site Grading and Drainage: Control cut-and-fill operations with consistent reference elevation across acres of rough grading where proper drainage prevents water pooling and erosion
• Landscaping and Irrigation: Establish level reference for hardscaping, retaining walls, and irrigation trenches where consistent slope affects water flow and surface appearance
• Masonry and Blockwork: Maintain level courses across long foundation walls and CMU construction where each course must align to previous elevation
• Interior Finish Work: Set drop ceiling grids, install chair rails, and align wainscoting across multiple rooms where visual alignment depends on true horizontal reference

Compatible Accessories

Expand your RL-H5B system with these compatible accessories:

• Topcon LS-100D Digital Receiver – Upgrade receiver with wireless remote display capability
• Topcon RC-40 Remote Control – Control laser rotation speed and functions from up to 100 feet
• SECO Heavy-Duty Flat Head Tripod – Aluminum tripod with 5/8"-11 thread and extended center column
• Topcon Aluminum Grade Rod Package – Direct-reading rods for elevation measurement with laser receivers
• Topcon BC-27CR Rechargeable Battery – Replacement rechargeable battery pack for extended runtime

Related Guides

• How to Calibrate Rotary Laser Levels for Accurate Elevation Control
• Topcon RL-H5A vs RL-H5B: Which Self-Leveling Laser Fits Your Work
• Extending Laser Receiver Range on Large Construction Sites
• Troubleshooting: Why Your Rotary Laser Won't Self-Level

Frequently Asked Questions

Can the RL-H5B work in single-slope mode for drainage projects?

Yes, the RL-H5B includes manual slope mode where you can adjust pitch using the calibration controls. However, this model does not have dual-axis slope capability—it creates single-direction slopes only. For precise digital slope control with dual-axis capability, consider the Topcon RL-SV2S. Manual slope on the RL-H5B works well for simple drainage runs, ditch grading, and parking lot slopes where you're establishing grade in one direction.

What's the actual battery life difference between alkaline and rechargeable options?

Alkaline D-cells provide approximately 100 hours of continuous rotation at normal temperatures. The rechargeable NiMH pack delivers about 60-70 hours per charge but can be recharged hundreds of times, making it more economical for daily use. The alkaline option serves as reliable backup power for emergency situations, remote job sites, or when you're running the laser continuously and can't afford downtime for charging. Many crews keep both options on hand.

Does the LS-80L receiver work with other rotary laser brands?

The LS-80L is compatible with any rotary laser operating on standard rotating laser frequencies, including most Spectra, Leica, and Hilti models. However, optimal performance and accuracy are calibrated specifically for Topcon lasers. The receiver detects the beam, calculates elevation, and provides on-grade/off-grade signals universally, but advanced features like millimeter readouts perform best when paired with Topcon laser units that match the receiver's calibration specifications.

How often does the RL-H5B require professional recalibration?

Topcon recommends annual recalibration for the RL-H5B when used in normal construction conditions. Lasers subjected to frequent transport, drops, extreme temperature cycling, or heavy vibration may require more frequent calibration checks. You can perform field calibration tests yourself using the two-point rotation check method described in the manual. If your field test shows accuracy degradation beyond ±3mm at 30 meters, send the unit to a certified Topcon service center for professional recalibration and adjustment.