The Spectra LR30 Laser Machine Display Receiver is designed to be used as a stand-alone display receiver on grading and excavating equipment including: dozers, backhoes, excavators, scrapers, skid steers, and levelers. The versatile, easy-to-use LR30 features 360-degree laser detection and works with all types of rotating lasers on all types of machinery for fast, no-hassle setup. Rugged and waterproof, the Spectra LR30 receiver withstands all weather environments. Internal isolating shock mounts protect the electronics. The LR30W is designed to work with the RD20 Remote Display.