HIGH-PERFORMANCE LIQUID TEMPERATURE SENSOR: The valve is equipped with a high-performance liquid thermostat sensor that ensures precise and reliable temperature control. EFFICIENT: This automatic thermostatic radiator valve is designed with high efficiency, which can help you save heating costs. PRECISE TEMPERATURE CONTROL: The temperature sensing element inside the thermostatic valve controls the size of the valve and automatically adjusts the rate to achieve a comfortable temperature range. DESIGNED FOR VALVE CORNER UNDERFLOOR HEATING: Designed for use with Valve Corner underfloor heating systems, this radiator thermostat provides precise temperature control for optimum comfort.