Feature: 1. Year Round Comfort: This intelligent thermostatic radiator valve effortlessly adjusts room temperatures between 5℃ and 45℃, catering to seasonal needs with a versatile programmable schedule. 2. Energy Efficient Savings: Experience energy savings of over 15% with the thermostatic radiator valve, effectively reducing energy while creating a smart home for you and your family. 3. Easy Installation: Compatible with all common radiator valves, this device requires no draining or intervention in your heating system, making installation quick and easy, complete with a child lock. 4. Rapid Heating and Quiet Work: Enjoy warmth in just five minutes with the additional heating function, while the specially designed motor works below 25 decibels for a peaceful home environment. 5. Smart Control and Convenience: Easily control the valve with the for Tuya and for Smart Life app while also voice command, featuring a clear LED display for easy monitoring. Specification: Item Type: Thermostatic Radiator Valve Material: ABS, PC Power Supply: 3V, 2 x AA Batteries (batteries not included) Maximum Stroke: Approx. 5.5mm / 0.22in Accuracy: ±0.5℃ Set Temperature Range: 5-45℃ / 41-113℉ Display Temperature Range: 0-70℃ / 32-158℉ Operating Temperature: 0-45℃ / 32-113℉ Operating Humidity: 5-95% RH (non condensing) Storage Temperature: -10-85℃ / 14-185℉ Timing Error: < 1% Safety Level: IP 20 Button: Knob button App: for Tuya and for Smart Life App For Zigbee 3.0, to be used with for Tuya for Zigbee Hub (Hub not included) . Package List: 1 x Thermostatic Valve 9 x Installation Accessories 1 x Screw 1 x Nut 1 x User Manual