Overview
The Spectra Precision LR30W-MM Machine Display Receiver with Magnetic Mount and RD20 Remote Display delivers professional-grade wireless laser reception for excavators, dozers, and grading equipment without permanent mounting requirements. This complete system combines a rugged LR30W receiver with magnetic base for instant tool-free attachment, plus an RD20 wireless remote display that lets operators view real-time grade information from the cab up to 300 feet away. Ideal for contractors managing multiple machines or rental fleets, the system eliminates drilling, welding, and complicated installations while providing millimeter-level accuracy for cut/fill operations, foundation prep, and fine grading. The wireless architecture allows rapid redeployment between machines in minutes, maximizing equipment utilization and reducing downtime on fast-paced construction sites.
Key Specifications
- Reception Range: Up to 2,600 feet (800m) diameter working range with rotating laser
- Accuracy: ±1/16" (1.5mm) digital readout precision
- Wireless Range: 300 feet (100m) between LR30W receiver and RD20 display
- Magnetic Mount Strength: Heavy-duty rare earth magnets, 60+ lb pull force
- Display Type: High-visibility LED with cut/fill arrows and numeric readout
- Power: Rechargeable Li-ion batteries; 40+ hour runtime per charge
- Durability Rating: IP67 waterproof/dustproof, survives 6-foot drops
- Operating Temperature: -4°F to 122°F (-20°C to 50°C)
- Compatibility: Works with all Spectra rotating lasers (HV302, LL500, GL700 series)
What's in the Kit
- LR30W Wireless Machine Display Receiver
- Heavy-Duty Magnetic Mount Base
- RD20 Wireless Remote Display Unit
- Rechargeable Li-ion Battery (LR30W)
- Rechargeable Li-ion Battery (RD20)
- Dual-Port Battery Charger with AC Adapter
- Protective Carrying Case
- Quick Start Guide and Documentation
Job Applications
- Excavation and Trenching: Magnetic mount attaches instantly to excavator buckets or arms for precise depth control without permanent brackets, allowing same receiver to rotate between multiple machines throughout the day
- Dozer Fine Grading: Operator monitors exact blade elevation from cab-mounted RD20 display while receiver sits on blade magnetic mount, eliminating need to exit cab and check grade stakes
- Equipment Rental Operations: Rental companies deploy wireless grade control across entire fleet without modifying customer equipment or voiding warranties through welding/drilling
- Foundation and Pad Preparation: Quick receiver repositioning on skid steers and compact equipment enables rapid verification of sub-base elevations across large foundation footprints
- Multi-Machine Site Coordination: Single operator supervises multiple grading operations by monitoring different machines' RD20 displays from central location, improving efficiency on complex sites
- Temporary Grade Control: Contractors on short-duration projects achieve laser-guided accuracy without investing time in permanent receiver installations that won't justify ROI
Compatible Accessories
Spectra HL700 Handheld Laser Receiver | Spectra HV302 Self-Leveling Rotating Laser | Spectra GL722 Dual Grade Laser | LR30 Series Replacement Batteries | Universal Machine Mounting Kits | Heavy-Duty Receiver Storage Cases
Related Guides
Wireless vs. Wired Machine Receivers: Which System Fits Your Fleet?
Magnetic Mount Laser Receiver Setup and Best Practices
Maximizing Laser Receiver Detection Range on Job Sites
Managing Grade Control Across Multiple Machines Efficiently
FAQ
- Will the magnetic mount stay attached during heavy vibration and rough grading?
- Yes, the LR30W-MM uses rare earth magnets with over 60 pounds of pull force, securely holding the receiver on buckets, blades, and arms during normal grading operations. For extreme vibration applications or overhead mounting, optional mechanical clamps provide additional security while maintaining quick-release capability.
- What's the actual wireless range between the receiver and RD20 display in real-world conditions?
- The RD20 maintains reliable connection up to 300 feet from the LR30W receiver in typical construction environments with metal equipment and structures. Range may reduce to 200-250 feet in areas with heavy RF interference or when signal must penetrate enclosed cab structures, though this still covers virtually all machine control scenarios.
- Can I use multiple RD20 displays with one LR30W receiver, or vice versa?
- Each LR30W receiver pairs with one RD20 display as a dedicated system. However, you can operate multiple LR30W/RD20 pairs simultaneously on the same job site without interference—ideal for contractors running several machines with independent grade control, each monitored from its respective cab display.
- Does this system work with lasers from other manufacturers like Topcon or Leica?
- The LR30W is optimized for Spectra Precision rotating lasers but will detect and display grade information from most manufacturers' red and green beam rotating lasers operating on standard frequencies. For guaranteed compatibility and full feature access, use with Spectra HV302, LL500, GL600, or GL700 series lasers.
