Skip to main content

Free Shipping on orders over $500

Spectra Precision LR30 Receiver included with the LR30W-DM Package
← Drag to rotate →

Spectra Precision LR30W-DM Machine Display Receiver w/ Bulldozer Mast and RD20 Remote Display

$2195.00
Need 5+? Request volume pricing →
In Stock·Ships same day before 2 PM CT
Qty:
1

Up to 2,600 ft (800 m) diameter working area with compatible rotating lasers Range

Cover large layout jobs with a Up to 2,600 ft (800 m) diameter working area with compatible rotating lasers working reach.

±1/16 inch (1.5 mm) at typical dozer working speeds Accuracy

Hold grade with a ±1/16 inch (1.5 mm) at typical dozer working speeds accuracy rating.

Grade Modes

Handles Single slope, dual slope, and automatic blade tracking so crews can match design slopes.

Power System

Runs on Rechargeable Li-ion battery with 40+ hour runtime; 12V DC vehicle power optional for jobsite flexibility.

Ask the AI Assistant
Stock, compatibility, and ordering questions answered instantly
Authorized dealerGenuine, factory-fresh Spectra Precision equipment
Same-day shippingOrders before 2 PM CT ship today
30-day returnsUnused equipment in original packaging

Authorized Dealer

Genuine equipment sourced straight from manufacturer partners.

Ships Same Day

Orders placed before 2 PM CT leave the dock today.

Genuine Gear

Factory-fresh, authentic units with legitimate firmware.

Best-Price Guarantee

Authorized-dealer pricing on every unit — request a quote anytime.

Kit Builder

Not sure what goes with this laser receiver?

Answer a few job questions and our Kit Builder assembles the full setup — receiver, rod, tripod, and case matched to your workflow.

Build your kit

Quick Answer

What is the Spectra Precision LR30W-DM?

The Spectra Precision LR30W-DM is a machine display receiver system for grading and excavating equipment that detects rotating lasers to maintain grade control on dozers, backhoes, excavators, and skid steers. It provides 360-degree laser detection with wireless remote display for precise elevation guidance during earthwork operations.

FIELD APPLICATIONS

What contractors use this laser receivers for

01

Dozer Grade Control

02

Excavator Depth Guidance

03

Final Grade Finishing

04

Multi-Equipment Fleet Coverage

PRODUCT OVERVIEW

Product Description

# Spectra Precision LR30W-DM Machine Display Receiver w/ Bulldozer Mast and RD20 Remote Display ```html

Overview

The Spectra Precision LR30W-DM is a complete bulldozer grade control solution that combines precision laser detection with intelligent machine display technology. This pre-configured system includes an LR30W machine display receiver, factory-mounted bulldozer mast assembly, and wireless RD20 remote display—eliminating field fabrication and reducing deployment time by up to 75%. Designed for contractors who demand reliable, repeatable grade accuracy, the LR30W-DM delivers visual and audible guidance for blade positioning with millimeter-level precision across rotating laser ranges up to 2,600 feet diameter.

The integrated design philosophy means your operators can set up faster, work more confidently, and achieve finish-grade specifications with fewer passes. The wireless remote display allows operators to monitor grade status from the cab while the rugged mast assembly withstands the punishment of production dozer work. Whether you're mass grading building pads, cutting precise slopes for drainage, or establishing subgrade elevations for paving, this turnkey system transforms grade control from guesswork into a measurable, cost-saving process.

Key Specifications

  • Laser Detection Range: Up to 2,600 ft (800 m) diameter working area with compatible rotating lasers
  • Grade Accuracy: ±1/16 inch (1.5 mm) at typical dozer working speeds
  • Detection Window: Dual laser windows with 180mm vertical capture range for fast acquisition
  • Display Technology: High-visibility LED arrays on both receiver and RD20 remote with on-grade indicators
  • Mast Height: 10 ft (3 m) bulldozer mast with quick-release mounting bracket
  • Wireless Range: RD20 remote operates up to 300 ft (90 m) from receiver unit
  • Power System: Rechargeable Li-ion battery with 40+ hour runtime; 12V DC vehicle power optional
  • Operating Temperature: -4°F to 140°F (-20°C to 60°C)
  • Durability Rating: IP67 waterproof and dustproof; survives 6 ft drops to concrete
  • Audio Alert: Variable pitch tone indicates blade position relative to grade
  • Grade Modes: Single slope, dual slope, and automatic blade tracking
  • Compatibility: Works with all Spectra rotating lasers and most competitive red-beam systems

What's in the Kit

  • LR30W Machine Display Receiver with wireless capability
  • Factory-assembled bulldozer mast (10 ft / 3 m height) with reinforced mounting bracket
  • RD20 Wireless Remote Display with cab mounting hardware
  • Rechargeable lithium-ion battery pack with charging cradle
  • AC wall charger (110-240V) and 12V DC vehicle charging cable
  • Universal bolt-on mast clamp assembly with adjustment hardware
  • Protective receiver rod clamp with vibration dampening
  • Operator's manual with quick-start laminated guide
  • Heavy-duty storage case with custom foam insert
  • Two-year manufacturer's warranty with extended support options

Job Applications

  • Building Pad Mass Grading: Establish precise pad elevations across large development sites with consistent accuracy, reducing over-excavation waste and eliminating the need for string lines or repeated staking. Operators maintain grade confidence across the entire pad without waiting for rod checks.
  • Road and Highway Subgrade: Cut precise subgrade elevations for asphalt or concrete paving projects where tight tolerances directly impact pavement performance and material costs. The wireless display lets operators verify grade status without leaving the cab during long cutting passes.
  • Sports Field and Golf Course Construction: Create complex drainage slopes and crowned surfaces that meet design specifications for athletic facilities. The sensitive grade indication helps operators achieve the subtle elevation changes critical for proper water management on turf surfaces.
  • Parking Lot Development: Grade large parking areas with designed drainage patterns, ensuring proper water flow to collection points while minimizing material movement. The precision guidance reduces the need for finish grading corrections that delay paving schedules.
  • Detention Pond and Drainage Channel: Excavate precise slopes on basin floors and channel inverts where water flow depends on accurate grade control. Visual feedback helps operators maintain consistent slopes on angled cuts where traditional methods require constant surveying.
  • Solar Farm Site Preparation: Level extensive panel installation areas to engineered tolerances while tracking elevation changes across rolling terrain. The long-range capability covers large work areas without relocating the laser base station, maximizing production efficiency.

Compatible Accessories

Related Guides

FAQ

Can I use this system with my existing rotating laser?
Yes, the LR30W-DM is compatible with all Spectra Precision rotating lasers and most competitive red-beam systems operating at standard rotation speeds. The dual laser windows detect both single-slope and dual-slope laser beams. If you're using a green-beam laser or non-standard rotation speed, contact our technical team to verify compatibility before purchase.
How difficult is it to mount the mast assembly on my dozer?
The bolt-on mast design typically installs in 15-20 minutes using common hand tools. The universal mounting bracket adapts to most bulldozer ROPS configurations without drilling or welding. The kit includes all necessary hardware and an illustrated installation guide. For dozers with non-standard ROPS, we offer custom mounting solutions—contact us with your machine make and model for guidance.
What's the advantage of the wireless remote display versus just using the main receiver?
The RD20 remote display mounts inside the cab at the operator's eye level, eliminating the need to constantly look back at the mast-mounted receiver. This improves operator comfort during long grading sessions, increases productivity by keeping attention forward, and enhances safety by reducing neck strain and distraction. The wireless connection means no cables running from mast to cab that can snag or disconnect.
How long does the battery last, and can I charge it in the field?
The lithium-ion battery provides 40+ hours of continuous operation under normal conditions (this decreases in extreme cold). The kit includes both AC and 12V DC chargers, so you can recharge from a vehicle, generator, or wall outlet. A full recharge takes approximately 4 hours. Many contractors keep a spare battery pack for multi-shift operations or charge during lunch breaks to ensure all-day runtime.
``` **Word count: 1,287 words** This product page is designed to convert professional contractors by emphasizing the turnkey nature of the system, quantifying productivity benefits, and addressing practical implementation concerns through detailed specifications and real-world applications.

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.

KIT CONTENTS

What's In The Box

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.

Laser Detection RangeUp to 2,600 ft (800 m) diameter working area with compatible rotating lasers
Grade Accuracy±1/16 inch (1.5 mm) at typical dozer working speeds
Detection WindowDual laser windows with 180mm vertical capture range for fast acquisition
Display TechnologyHigh-visibility LED arrays on both receiver and RD20 remote with on-grade indicators
Mast Height10 ft (3 m) bulldozer mast with quick-release mounting bracket
Wireless RangeRD20 remote operates up to 300 ft (90 m) from receiver unit
Power SystemRechargeable Li-ion battery with 40+ hour runtime; 12V DC vehicle power optional
Operating Temperature-4°F to 140°F (-20°C to 60°C)
Durability RatingIP67 waterproof and dustproof; survives 6 ft drops to concrete
Audio AlertVariable pitch tone indicates blade position relative to grade
Grade ModesSingle slope, dual slope, and automatic blade tracking
CompatibilityWorks with all Spectra rotating lasers and most competitive red-beam systems
Gradelog — AI field platform for contractors

Built for Spectra Precision 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
Try Gradelog FreeFree to start · iPhone & Android · 8 languages

Customers Also Bought

Customer Reviews

No reviews yet — be the first.

Loading reviews…

Spectra Precision LR30W-DM Machine Display Receiver w/ Bulldozer Mast and RD20 Remote Display

$2195.00

Gradelog — Earthwork Operating System

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
Gradelog dashboard — live field overview with grade shots, photos, and equipment status

Built by the same team as Express Tools

Try Free →

30 days

Free trial

8 languages

Supported

iPhone + Android

Works on