NOTE: Fast shipping ,if your address in US/CA/EU, it only take 12-18 days to reach your hand. Other country may take 25-35 days depend on your address, thanks for your understanding~ 1.Smart Tuya ZigBee Radiator Actuator Thermostat:New mini design with simple and clear LCD display screen on the body,the radiator thermostat is with LCD digital display screen and two sections of batteries powered,which is a 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.A Tuya ZigBee Wireless Gateway Hub is a Must : A ZigBee wireless hub is a must that connects to the valve many other ZigBee smart products and realizes the whole linkage of your smart home devices.Simply add your gateway to the App,then add your radiator actuator to your gateway in the App. 3.It is connected to other Zigbee devices through a wireless gateway, and has a wide range of applications. It is suitable for residential, shopping, hotel heating and central air-conditioning temperature control. It is equipped with compatible connectors. It is a smart life temperature control assistant. It has vacation mode and rest. The daily temperature can be set individually; the working time of the device can be set in the smart life APP, with a mini design, simple operation, convenient display, and space saving; weekly programming settings can be set for 5+2, 6+1, 7 days and six periods. 4.Smart Tuya ZigBee Radiator Thermostat: The radiator thermostat is with LCD digital display screen with easy new added knob for simple settings. It is designed with two sections of AA batteries, which is a special valve using cooperatively with heating radiator for energy-saving supported. Artificially set indoor temperature, mainly used in the floor heating system to control the closing and opening of the pipe. 5.A Tuya ZigBee Wireless Gateway Hub is a Must to work with: A ZigBee wireless hub is a must that connects to the valve ,as well as a variety of ZigBee smart products, which is proved to be the bridge and control center for smart homes, which plays an irreplaceable role for all ZigB Specifications: Power: 2* AA alkaline batteries Insulating condition: 0-50 Display accuracy:0.5 Running program: Set per 1 week as a cycle Probe sensor:NTC(10k)1% Size(mm)53*89.5mm Maximum route4.5mm Range of temperature display:1~70C Default range of temperature adjustment5~35C Maximum current90mA Working environment temperature-10~60C Thread sizeM30*1.5 Package Included: 1/2/3 Temperature control valve Manual: x1 OR 1/2/3 Temperature control valve 1 ZigBee Gateway