The Spectra Precision LR50W-MM Laser Machine Display Receiver includes the LR50 Display Receiver, Wireless RD20 Remote Display, MM-1 Magnetic Mount, NiMH battery, charger, and carrying case. The LR50 is designed to be used as a stand-alone display receiver on grading and excavating equipment, including dozers, excavators, backhoes, scrapers, and box blades. The easy-to-use LR50 features versatile 360-degree laser reception and works with all types of red beam rotating lasers on all types of machinery for fast, no-hassle setup and operation. Built-in blade tilt indicator helps operator keep the blade level for increased grading accuracy and productivity; Plumb indicator for excavation provides accurate grade checks. Rugged and waterproof, the LR50 receiver withstands all weather environments and internal isolating shock mounts protect the electronics.