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Topcon LS-B20W Machine Control Laser Receiver - 1063525-04 WIRELESS Compatable
Extended range for large earthwork and grading applications Range
Cover large layout jobs with a Extended range for large earthwork and grading applications working reach.
Power
Runs on Machine-sourced power via standard cable connection for jobsite flexibility.
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Genuine, factory-fresh Topcon equipment with legitimate firmware and calibration documentation.
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In-stock orders placed before 2 PM CT ship the same day.
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Quick Answer
What is the Topcon LS-B20W?
The Topcon LS-B20W Machine Control Laser Receiver (Part Number 1063525-04) is a wireless-compatible laser receiver designed for machine control grading applications. It provides LED grade indication and extended detection range for use with Topcon rotating laser transmitters on standard mast-mount installations. It's available from Express Tools.
What contractors use this laser receivers for
Construction Layout
Precise positioning for structural and civil work
As-Built Documentation
Field-verified position records for project closeout
Grade Verification
Confirm elevations against design before pouring or paving
Product Description
The Topcon LS-B20W (Part No. 1063525-04) is a professional-grade wireless machine control laser receiver engineered for contractors who demand precise, efficient grade control without the limitations of traditional cabled setups. By integrating wireless communication directly into the receiver, the LS-B20W eliminates time-consuming cable runs between laser transmitters and heavy equipment, reducing setup overhead on large earthwork sites and multi-machine operations. Whether you're working with motor graders, bulldozers, or excavators, this receiver delivers the reliability and accuracy that Topcon's machine control platform is known for.
Product Overview & Jobsite Applications
The LS-B20W is purpose-built for contractors managing complex grading operations across expansive job sites. Its wireless capability allows multiple machines to receive simultaneous grade data from a single rotating laser, keeping an entire fleet on-grade without physical tethering. The receiver integrates directly into Topcon's digital site ecosystem, enabling synchronized cut/fill guidance and real-time grade corrections through compatible machine control displays. Backward compatibility with wired Topcon laser systems protects existing equipment investments while allowing a phased transition to fully wireless workflows.
Key Specifications
- Model: LS-B20W
- Part Number: 1063525-04
- Connectivity: Wireless (compatible with Topcon wireless laser systems) and wired operation
- Laser Compatibility: Topcon rotating laser transmitters (single and dual-grade)
- Display: LED grade indication for operator feedback
- Detection Range: Extended range for large earthwork and grading applications
- Operating Temperature: Rated for demanding outdoor construction environments
- Mounting: Mast-mount compatible for standard machine control installations
- Power: Machine-sourced power via standard cable connection
Key Features
- Wireless capability eliminates cable runs between laser transmitters and equipment cabs
- Multi-machine coordination — share a single laser plane across an entire equipment fleet
- Backward compatible with wired Topcon laser systems for mixed-fleet operations
- Robust housing designed to withstand vibration, dust, and moisture on active job sites
- Compatible with Topcon machine control displays and grade control boxes
- Simplified installation reduces downtime during equipment setup and changeovers
- Reliable laser detection in bright sunlight and adverse weather conditions
Job Applications
Site Grading & Earthwork: Mount the LS-B20W on motor graders or bulldozers to maintain consistent cut/fill grades across large clearing and grading operations. The wireless connection keeps the machine on-grade without routing cables through cabs or over tracks.
Road Base Preparation: Use the receiver on a blade or dozer to achieve precise subbase elevations required for road construction, ensuring uniform compaction depth and eliminating costly overcuts.
Pad Construction: Building commercial or residential pads to tight tolerances is straightforward with synchronized laser grade control — the LS-B20W feeds real-time elevation data to the machine's control system for continuous automatic blade adjustments.
Multi-Machine Fleet Coordination: On large earthmoving projects with multiple graders or dozers working simultaneously, the LS-B20W allows each machine to receive wireless grade data from the same rotating laser, ensuring consistent elevations across the entire site without re-staking or manual checks.
Compatible Accessories
- Topcon RL-H5A Rotating Laser Level
- Topcon GX-55 Machine Control Display
- Topcon MC-R3 Wireless Laser Receiver Module
- Universal Laser Receiver Mast Mount Bracket
- Topcon Machine Control Grade Control Box
Related Guides
- How to Set Up Wireless Machine Control on a Motor Grader
- Laser Receiver Mounting Best Practices for Earthmoving Equipment
- Choosing the Right Topcon Laser Receiver for Your Application
- Wired vs. Wireless Machine Control: Which Is Right for Your Fleet?
Frequently Asked Questions
- Is the Topcon LS-B20W compatible with non-Topcon laser systems?
- The LS-B20W is designed and optimized for use within the Topcon laser ecosystem. While it may detect some third-party rotating lasers in wired mode, wireless functionality is specific to Topcon wireless-capable transmitters. For guaranteed performance, use with a compatible Topcon rotating laser.
- Can the LS-B20W be used in both wired and wireless modes?
- Yes. The LS-B20W supports both wired and wireless operation, making it backward compatible with existing cabled Topcon laser setups. This allows contractors to use the receiver on legacy equipment while taking advantage of wireless operation on newer or retrofitted machines.
- How many machines can share one laser transmitter using the LS-B20W?
- Multiple LS-B20W receivers can operate simultaneously from a single rotating laser transmitter, making it ideal for coordinating entire equipment fleets on large earthwork projects. The exact number of simultaneous receivers depends on the transmitter model and site conditions.
- Does Express Tools offer support and warranty service for the Topcon LS-B20W?
- Yes. Express Tools is an authorized Topcon dealer, so all products are sold with full manufacturer warranty coverage. Our team can assist with setup questions, warranty claims, and compatible accessory recommendations. Contact us directly for post-purchase support.
Why This Equipment
Large Capture Window
Wide detection zone catches the laser beam at distance without precise aiming.
Radio Compatibility
Pairs directly with compatible transmitters for wireless grade control.
Jobsite Tough
Rubber-armored housing rated for drops, dust, and continuous outdoor use.
Grade Resolution
Fine grade detection down to 1/16" — the precision your job spec requires.
The right receiver extends your laser. A lot.
Most rotary and grade lasers ship without a receiver — because different jobs need different detection windows. A standard handheld receiver works for grading and site layout. Machine-mount receivers survive dozer and scraper duty.
Matching receiver to laser matters: grade resolution, radio compatibility, and capture-height window all affect how accurately you can work at distance. Using a mismatched receiver is the leading cause of grade errors that pass QC but fail inspection.
Express Tools stocks the receivers your laser manufacturer recommends — not just what fits in the box. We can tell you exactly which receiver pairs with your existing laser if you call.
Specifications
Technical Specs
Manufacturer data and field-verified measurements.
| Model | LS-B20W |
|---|---|
| Part Number | 1063525-04 |
| Connectivity | Wireless (compatible with Topcon wireless laser systems) and wired operation |
| Laser Compatibility | Topcon rotating laser transmitters (single and dual-grade) |
| Display | LED grade indication for operator feedback |
| Detection Range | Extended range for large earthwork and grading applications |
| Operating Temperature | Rated for demanding outdoor construction environments |
| Mounting | Mast-mount compatible for standard machine control installations |
| Power | Machine-sourced power via standard cable connection |
Built for Topcon equipment owners
Run the jobsite around your equipment
Gradelog is the AI field platform for contractors — grade shots, photo documentation, calibration tracking, and as-built reports, all tied to your gear.
- Equipment & calibration tracking
- Photo + grade documentation
- AI field assistant, 8 languages
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Topcon LS-B20W Machine Control Laser Receiver - 1063525-04 WIRELESS Compatable
$1149.95

Free 30 days with every Express Tools purchase
Your equipment. Your data. All in one place.
Gradelog is the field-execution platform built for grading and earthwork crews. Log grade shots, track cut/fill, document phases with photos, and generate as-built reports — from the cab to the office.
- Grade shots & cut/fill tracking per job
- Photo documentation by phase, task, and equipment
- As-built reports ready for inspector sign-off
- AI field assistant — troubleshoot on the jobsite

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