PRECISE TEMPERATURE CONTROL: The temperature sensing element inside the thermostatic valve controls the size of the valve and automatically adjusts the flow rate to achieve a comfortable temperature range. ENERGY EFFICIENT: This automatic thermostatic radiator valve is designed with high energy efficiency, which can help you save heating costs. HIGH-PERFORMANCE LIQUID TEMPERATURE SENSOR: The valve is equipped with a high-performance liquid thermostat sensor that ensures precise and reliable temperature control. 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. Product Name: radiator thermostat valve Pressure: low pressure Port size: DN15 =1/2 inch Power supply: manual Medium: water Construction: Control Power: Medium DC Medium: DC Temperature: Ambient Standard or non-standard: standard Model: DN15 Colour:As Shown Material:copper Package Contents: 2 * Thermostatic Radiator Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.