Topcon LSB10W Machine Receiver shown while being used on an Excavator

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At a Glance

Model: LS-B10W-PRO Kit — Part No. 312660111
Receiver Type: Wireless machine-mounted laser receiver
Display Unit: RD-100W wireless remote in-cab display
Wireless Range (receiver To Display): Up to 100 m (328 ft)
Laser Compatibility: 635–690 nm visible and infrared rotating lasers
Accuracy: ±1.5 mm (1/16 in) on-grade deadband (adjustable)

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Topcon LS-B10W Pro Kit - Machine Control Laser Receiver 312660111 - with RD100W In-Cab Display /

Name: Topcon LS-B10W Pro Kit - Machine Control Laser Receiver 312660111 - with RD100W In-Cab Display / 312671121
Brand: Topcon
SKU: 312660111
Price: 1549.95 USD
Availability: InStock

$1549.95

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Up to 100 m (328 ft) Range

Cover large layout jobs with a Up to 100 m (328 ft) working reach.

±1.5 mm (1/16 in) on-grade deadband (adjustable) Accuracy

Hold grade with a ±1.5 mm (1/16 in) on-grade deadband (adjustable) accuracy rating.

Power

Runs on AA batteries (receiver); rechargeable battery (RD-100W display) for jobsite flexibility.

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Quick Answer

What is the Topcon LS-B10W?

The Topcon LS-B10W Pro Kit is a wireless machine control laser receiver system designed for contractor grade surveying and machine guidance. This kit pairs a machine-mounted receiver with an RD-100W in-cab display, offering up to 100 m wireless range and ±1.5 mm on-grade accuracy for precise earthmoving operations. It's available from Express Tools.

FIELD APPLICATIONS

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 OVERVIEW

Product Description

The Topcon LS-B10W-PRO Machine Control Kit (312660111) delivers professional-grade elevation control for heavy equipment operators who demand accuracy and real-time feedback from inside the cab. Combining the rugged LS-B10W wireless machine receiver with the RD-100W remote wireless display, this kit eliminates the need for operators to crane their necks or step off the machine to read grade — the display mounts cleanly in the cab and communicates wirelessly with the receiver mounted to the blade or screed post. Whether you're cutting subgrade, spreading fill, or trimming finish on a road base, this system keeps you on grade and on schedule.

Overview & Jobsite Applications

The LS-B10W-PRO Kit is engineered for contractors running rotating laser setups on earthwork, site development, and civil construction projects. The LS-B10W receiver captures the laser plane signal and transmits grade status wirelessly to the RD-100W display — no trailing cables, no dashboard clutter. The bright LED display gives operators clear on-grade, cut, and fill indicators even in direct sunlight, keeping productivity high across long work cycles. This kit is ideal for single-slope and dual-slope laser systems and integrates with a wide range of Topcon rotating lasers.

Key Specifications

Model: LS-B10W-PRO Kit — Part No. 312660111
Receiver Type: Wireless machine-mounted laser receiver
Display Unit: RD-100W wireless remote in-cab display
Wireless Range (Receiver to Display): Up to 100 m (328 ft)
Laser Compatibility: 635–690 nm visible and infrared rotating lasers
Accuracy: ±1.5 mm (1/16 in) on-grade deadband (adjustable)
Receiver Detection Window: 173 mm (6.8 in)
Operating Temperature: -20°C to +60°C (-4°F to +140°F)
IP Rating: IP66 dust and water resistant
Power: AA batteries (receiver); rechargeable battery (RD-100W display)

What's in the Kit

Topcon LS-B10W wireless machine laser receiver
Topcon RD-100W wireless remote in-cab display
Universal machine mounting bracket and hardware
Cab mounting bracket for RD-100W display
Carrying case for transport and storage
Operator's manual and quick-start guide

Job Applications

Road Base & Subgrade Preparation: Set your rotating laser to the design slope and let the LS-B10W-PRO guide your motor grader or dozer blade to consistent grade across the full width of the roadbed — cut depths and fill heights displayed live in the cab.

Building Pad & Site Grading: Control cut-to-fill operations on large commercial pads where operators need continuous elevation feedback without stopping to check grade stakes. The wireless display keeps the operator informed pass after pass.

Trench Bottom & Utility Work: Mount the receiver on an excavator thumb or trench box rod for precise invert control. The remote RD-100W keeps the operator on-depth without a ground guide in the trench.

Parking Lots & Drainage Slopes: Achieve tight tolerance positive drainage slopes on asphalt and concrete paving prep work. The adjustable deadband setting lets crews dial in the sensitivity required for finish-grade tolerances.

Compatible Accessories

Frequently Asked Questions

Does the RD-100W display need to be cabled to the LS-B10W receiver?: No. The RD-100W communicates wirelessly with the LS-B10W receiver, with a reliable range of up to 100 meters. This eliminates any need to run cables through the cab or along the blade mast, making setup faster and reducing wear points on the system.
What rotating lasers are compatible with this kit?: The LS-B10W receiver is compatible with most Topcon rotating lasers in the RL-H, RL-SV, and RL-200 series, as well as many third-party rotating lasers operating in the 635–690 nm wavelength range. Confirm compatibility with your specific laser model before purchase — our team at Express Tools can assist.
Can this kit be used on both a dozer and a motor grader?: Yes. The universal mounting bracket included with the kit accommodates blade mast installations on most dozers and motor graders. The compact, rugged design of the LS-B10W makes it well-suited for the vibration and exposure conditions of both machine types.
Is this kit suitable for dual-slope grade control applications?: The LS-B10W-PRO Kit is designed for single-receiver, single-axis grade control. For full dual-slope or 3D machine control, a more advanced control system would be required. However, for single-slope rotating laser setups — which cover the vast majority of earthwork grading tasks — this kit delivers professional accuracy and dependable performance.

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.

Why Buy This?

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.

TECHNICAL SPECS

Specifications

Technical Specs

Manufacturer data and field-verified measurements.

Model	LS-B10W-PRO Kit — Part No. 312660111
Receiver Type	Wireless machine-mounted laser receiver
Display Unit	RD-100W wireless remote in-cab display
Wireless Range (receiver To Display)	Up to 100 m (328 ft)
Laser Compatibility	635–690 nm visible and infrared rotating lasers
Accuracy	±1.5 mm (1/16 in) on-grade deadband (adjustable)
Receiver Detection Window	173 mm (6.8 in)
Operating Temperature	-20°C to +60°C (-4°F to +140°F)
IP Rating	IP66 dust and water resistant
Power	AA batteries (receiver); rechargeable battery (RD-100W display)

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.