Salus RT520TX Wireless Programmable Thermostat Replacement - Transmitter Only for RT520RF Systems, OpenTherm & Load Compensation, 5/2 or 7 Day Scheduling

REPLACEMENT THERMOSTAT ONLY (NO RECEIVER INCLUDED) - This product includes the wireless thermostat transmitter only and requires an existing compatible receiver already installed within the heating system. Not a complete heating kit DESIGNED FOR RT520RF WIRELESS HEATING SYSTEMS - Compatible with existing RT520RF setups, making it ideal for replacing lost, damaged or faulty thermostat units without replacing the full system ADVANCED OPENTHERM AND LOAD COMPENSATION CONTROL - Supports OpenTherm communication and load compensation for more precise boiler control and improved heating efficiency when used with compatible systems WIRELESS PROGRAMMABLE THERMOSTAT WITH FLEXIBLE PLACEMENT - Allows thermostat positioning without wiring between the thermostat and boiler, helping improve comfort and temperature accuracy FLEXIBLE 5/2 OR 7 DAY HEATING SCHEDULING - Programme weekday and weekend heating schedules to suit your daily routine and improve energy management