Spectra Precision GL722 Dual Grade Laser with CR600 Receiver, RC703 Long-Range Radio Remote Control, NiMH Rechargeable Batteries, Charger, Storage Case ADVANCED DUAL GRADE CONTROL: Offers precise X-axis and Y-axis grading with ranges of -10% to +10% and -0.5% to +25%, featuring automatic temperature compensation for accurate performance across environmental changes without recalibration. LONG-RANGE OPERATION: Covers up to 900 meters (3,000 feet) diameter, enabling efficient general construction, site preparation, and road work with reliable grade matching and Planelok features for consistent setup. ONE-PERSON REMOTE CONTROL: Includes RC703 long-range radio remote allowing full transmitter operation up to 225 meters (750 feet) away, automatic axis alignment up to 150 meters (500 feet), and fast grade reverse without manual adjustments. DURABLE ACCESSORIES INCLUDED: Packaged with CR600 receiver, NiMH rechargeable batteries, charger, and protective storage case, ensuring accurate measurements, secure transport, and robust performance on demanding job sites.