Features: *Convenient Control: The ZigBee Smart TRV Controller allows you to control your radiator thermostat valve from anywhere and at any time using the dedicated phone app. You can easily adjust the temperature, set schedules, and monitor energy usage with just a few taps on your smartphone. *Enhanced Comfort: With the programmable weekly schedule and time period feature, you can deeply customize the room temperature according to your specific requirements. This ensures comfort while minimizing energy waste. *Intelligent Features: The TRV controller offers various intelligent features, such as auto calibration function, LED display, and time open query. These functionalities provide accurate measurements, clear information, and a historical view of the TRV's operation, allowing you to make informed adjustments for increased efficiency. *Seamless Integration: This TRV controller can be seamlessly integrated into your smart home ecosystem. With features like voice control, linkage function, family share function, and group-control function, you can create a comprehensive smart home experience, enabling effortless control and coordination of multiple devices. *Safety and Protection: The TRV controller ensures the safety and protection of your home. The child lock function prevents unauthorized access or accidental adjustments, while the anti-frost/anti-limescale feature protects your water pipes and reduces maintenance and repair costs. Specifications: *-- APP:Smart Life/Tuya Smart *-- Voice Control:Amazon Alexa,Google Home *-- Frequency2.4GHz *-- Battery2*AA Alkaline Battery (LR6) *-- Battery lifeHalf a Year *-- Temeprature range5-60 *-- Temperature Display:0-60 *-- Constant temperature tolerance±1 *-- Temperature Sensor:NTC *-- Wireless Protocol:Zigbee 3.0 *-- ConnectionM30x1.5mm *-- MAX travel6mm *-- Working temperature-10- 40 *-- Working environmentIndoor *-- Anti-Froze:Yes *-- Programmable:Yes