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Spectra Precision LR50/LR50W Machine Display Receiver

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Spectra Precision LR50 & LR50W Machine Display Receivers with Linear Display / Control and Automatic Plumb Indicator

The Spectra Precision LR50 & LR50W Laser Machine Display Receivers are designed to be used as stand-alone display receivers on grading and excavating equipment including dozers, excavators, backhoes, scrapers and box blades.
The easy to use LR50 & LR50W feature versatile 360 degree laser reception and work with all types of rotating lasers on all types of machinery for fast, no-hassle setup. Rugged and waterproof, the LR50/LR50W receivers withstand all weather environments. Internal isolating shock mounts protect the electronics. 


  • Built-in blade tilt indicator helps the operators keep thew blade level for increased accuracy and productivity.
  • Center On-grade provides an equal amount of grade information above and below on-grade: use on dozers, graders, scrapers and box blades.
  • Offset on-grade for productive excavation provides additional above grade information for less undercuts.
  • Built-in plumb indicator for fast, accurate grade checking for excavators and backhoes.
  • Up to six channels of grade information plus directional out-of-laser beam indicators.
  • Three selectable accuracies meet job tolerances from rough grading to final finishing for maximum flexibility.
  • Adjustable, ultra-bright LED with green on-grade display provides user selectable, easy-to-see display to match ambient lighting conditions. 


Number of Display Channels 5 channel display, 6 channel display in excavating mode
Accuracy: centre on grade mode (grading) Fine: 5mm, Standard: 10mm, Wide: 20mm
Accuracy: offset on grade mode (excavating) Fine: 12mm, Standard: 25mm, Wide: 50mm
ACE - Angle Compensation Mode N/A
Blade-Tilt accuracy +/- 0.5°, +/- 1.5°, +/- 2.5°
Plumb-swing accuracy +/- 0.5°, +/- 1.5°, +/- 2.5°
Vertical reception 171mm
LED battery life  
Alkaline bright/dim 45/60 hours
Wireless with remote on 20/30 hours
Ni-MH bright/dim 30/45 hours
Wireless with remote on 15/20 hours
Receiver warranty 2 years


Spectra Precision LR50 Machine Display Receiver pdf brochure


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