Features: The thermostat is made of Plastic material, which is not easy to break and use, practical and durable. The radiator thermostat head is suitable for M30x1.5 threaded connections. Suitable for compact heaters with integrated valves set. Thermostatics radiator valves heating system has no fixed temperature adjustment ranges. It can senses external temperature change to adjust its own temperature. The thermostat radiator has 5 levels to adjust the temperature, can provide an adjustment aid. Perfect for use in homes, offices, and other indoor settings where temperature control is essential, allowing you to create an perfect atmosphere. Specifications: Material: Plastic Height: Approx. 86mm/3.38inch Maximums Diameter: Approx. 50mm/1.97inch Connection thread: 30x1.5 Applicable spools size:15mm Output liquid sensor (hydraulic sensor): 230VAC, 50Hz. Set value range: 6-28℃ Temperature hysteresis: 1.0K. Maximums working pressure: 10bar. Package Includes: 1x Temperature Control Valves note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.