COMPLETE WIRELESS THERMOSTAT & RECEIVER KIT - Includes both the RT310TX wireless thermostat and RXRT510 receiver. Everything required to control your heating system wirelessly in one box. No additional components needed IDEAL UPGRADE FROM WIRED OR OLDER THERMOSTATS - Perfect for replacing existing wired thermostats like the RT310 or upgrading older systems to wireless control, allowing better positioning and improved temperature accuracy PRE-PAIRED FOR FAST INSTALLATION - Thermostat and receiver are factory paired, so they work together straight out of the box. No complex setup or RF configuration required COMPATIBLE WITH MOST BOILERS (VOLT-FREE OR 230V) - Receiver connects directly to your boiler and supports both volt-free and 230V switching, making it suitable for a wide range of UK heating systems STABLE, ENERGY-EFFICIENT TEMPERATURE CONTROL (TPI) - Built-in TPI technology adjusts how your boiler operates to maintain a consistent room temperature while helping reduce unnecessary energy use, Weight: 0.44 Pounds, Manufacturer: Salus Controls