The EPH TR1 and TR2 RF Transceiver Pack provides a professional wireless control solution for heating systems where traditional cable installation is difficult or impractical. This system functions as a dual-unit kit that establishes reliable wireless links between two points, supporting bidirectional signal transmission. It is specifically engineered to manage the wireless switching of external boilers, underfloor heating manifold valves, and pump overrun systems. By removing the need for physical wiring, this transceiver pack facilitates easier retrofitting and installation in projects where cable routes are unavailable. The system is compatible with a 230 Vac 50Hz power supply and features a robust contact rating of 250 Vac 10(3)A, ensuring consistent performance for both residential and commercial heating applications.