TUYA Zigbee3.0 TRV Thermostat -Valve Thermostatic Radiator Room Programmable Temperature Controller Voice Control Works with Google-Home & Alexa Product Features: 1. for Smart Tuya ZigBee Radiator Actuator Thermostat: With LCD digital display screen Two sections of AA batteries powered, Special -valve using cooperatively with heating radiator. Artificially set indoor temperature, mainly used in the floor heating system to control the closing and opening of the pipe. 2. Must work with Tuya ZigBee Wireless for Gateway Hub: A ZigBee wireless hub is a must that connects to the -valve many other ZigBee for smart products to realizes the whole linkage of your for smart home devices. Simply add your for gateway to the App, and then add your radiator actuator to your for gateway in the App. 3. Programmable Schedule with Weekly Programming Selection: Supports manual set up 5+2,6+1 and 7 days weekly schedule with 6 periods for option Provide you with the maximum convenience for different situation and setting customized schedule for your house temperature. Holiday mode, automatic mode, boost mode is available. Choose workday and restday mode to meet your own mind. 4. Voice and Remote Control for the Tuya ZigBee Wireless Gateway: App remote control via your for smart phone. Hands-free voice control via Alexa and Google-Assistant. 5.Open Window Detection: When room temperature suddenly drop into temperature threshold, -valve will close for 15 minutes. After that, if the-room temperature is still lower than temp. Threshold, it will keep this mode. Easy to read digital display with Celsius temperature. Parameter: Power Supply: 2*2 AA* 1.5V alkaline batteries Maximum current: 90mA Working environment temperature: -10~60C Display accuracy: 0.5 Default range of temperature adjustment: 5~35C Probe sensor: NTC(10k)1% Range of temperature display: 1~70C Thread size: M30*1.5 Insulating condition: Normal environment Size: 53*89.5mm Running program: Set per 1 week as a cycle Maximum route: 4.5mm Package Listing: 1 * Radiator Thermostat 1 * Bag of Accessory 1 * User Manual Q&A: 1. Q: Can I use my own hub to connect with the -valve? A: No,this radiator thermostat can only be used with our Tuya ZigBee wireless for gateway hub. We also offer the set of the hub for your choosing. 2. Q: Can this thermostat be set to Fahrenheit display? A: No,it can only be displayed with Celsius display. 3. Q: Can I program the schedule myself? A: Yes, the thermostat is programmable.You are able to program your schedule freely. 4. Q: Can I control the thermostat if I am not at home? A: Yes, since successfully connect it to the hub, you are able to control your device on your for smart phone App anywhere. 5. Q: Does the thermostat have a screen lock to prevent guests or kids from tampering with the settings? A: Yes, it has. It has a fully locked mode that prevents any changes or misoperation by children. 6. Q: Is the battery included? A: No. As delivery limitation, the battery is not included.