Spectra Precision LR20 Machine Display Receiver

The Spectra Precision LR20 is a rugged, high-precision machine-mounted laser receiver designed to deliver real-time elevation feedback for a wide range of earthmoving and grading applications. Built for use with excavators, backhoes, dozers, box blades, and trenchers, the LR20 mounts directly onto heavy equipment to provide operators with instant LED grade indication, increasing productivity and reducing the need for a rodman.

With a 270° laser reception angle and a 127mm (5") capture window, the LR20 quickly detects rotating laser beams from a wide sweep of motion, even during fast machine passes or when working on slopes. It features adjustable on-grade accuracy, from ultra-fine (for tight tolerance grading) to coarse (for rough cut operations), letting you tailor sensitivity to the job. The unit includes an Excavator Mode that filters out erratic beam movement during bucket motion and a Plumb Indicator Mode to show tilt within ±2.5°, helping ensure vertical alignment.

Designed with a die-cast magnesium housing, shock-absorbing internal mount, and IP67-rated weatherproofing, the LR20 can survive drops from up to 3 meters (10 feet) and perform reliably in the harshest field conditions. It runs on machine power or an optional rechargeable battery pack, giving you flexibility across different job sites.

Available Packages:

LR20 Standard Package

• LR20 Machine Display Receiver

• Built-in LED Grade Display

• Power Connector

LR20-1 Advanced Package

• LR20 Machine Display Receiver

• Machine Mounting Module (MMM) for fast machine attachment

• Power Connector and LED Grade Display

The Spectra LR20 is the perfect solution for contractors and operators needing a durable, accurate, and jobsite-proven laser receiver that supports both machine-mounted and flexible grading applications.