The EPH TR1 and TR2 RF Transceiver Pack provides professional wireless control for heating system applications where physical cable installation is impractical. This dual-unit system establishes reliable wireless links between two locations, allowing for bidirectional signal transmission between the TR1 and TR2 units. Designed for professional heating installations, this kit enables the wireless switching of external boilers, underfloor manifold heating valves, and pump overrun systems. Operating on a standard 230 Vac 50Hz power supply with a 250 Vac 10(3)A contact rating, the system provides dependable control for both residential and commercial projects. By eliminating the need for hardwired connections, it offers installation flexibility in retrofitting scenarios and complex locations where traditional wiring routes are unavailable or costly to implement.