The Lutron RR-MAIN-REP RadioRA2 Main Repeater is a central component of the RadioRA 2 lighting control system, designed to ensure robust and reliable communication throughout your home or commercial space. The Main Repeater acts as the hub for the entire RadioRA 2 system, managing and amplifying signals between devices to ensure seamless integration and optimal performance. It is an essential part of any larger RadioRA 2 setup, providing enhanced system reliability, extended range, and efficient communication across multiple devices.