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The Spectra Precision LR50 is a rugged, 360-degree laser machine display receiver designed for use on grading and excavating equipment, including dozers, excavators, backhoes, scrapers, and box blades. This versatile receiver features a built-in blade tilt indicator and an excavator boom plumb indicator to significantly enhance accuracy and productivity on the job site.
The LR50 provides a 5-channel linear LED display (6 channels in excavating mode) that delivers clear, real-time grade feedback to the operator. It is engineered to withstand harsh environments with internal isolating shock mounts and a waterproof, cast aluminum and polycarbonate housing. The receiver supports both manual display operation and automatic machine control, integrating seamlessly with Spectra CB-series control boxes.
Key features include center on-grade for grading applications and offset on-grade for excavation, providing more range above the on-grade position to avoid over-digging. With three selectable accuracies, the LR50 can be configured to match specific job tolerances from rough grading to final finishing.
