NO Hub Needed:Use 2.4G wifi network,easy to set up,view temperature humidity in the app "smart life" anywhere,anytimeVoice Control:Support Alexa,Google Assistant,know temperare via simple voice control commands, e.g. :"Alexa,What's the temperature in here?"don't support to know humidity via alexaLCD Display:The Big LCD screen dynamically displays real-time values, conveys the comfortable state of the home environment, and the mobile APP can view current and historical temperature dataAlert:send push notifications via app when temperature or humidity goes out of preset value,or IN ADDITION - we also provide the second level of security (value-added service), you can choose to open the SMS or phone call notification alarm function on the appLow advantage design to ensure long-term battery life.Power supply mode: DC 4.5V (3 AA batteries)Produktbeschreibung 1. Radio transmitting circuit and coding technology to solve the problem of signal interference blocking 2.Various temperature modes can be adjusted, suitable for different scenarios 3. Wireless transmission of data signals, mobile phone remote monitoring 4. Ultra-low power consumption and long battery life 5.With low voltage monitoring prompt function 6. Split design, high reliability Specifications: The temperature and humidity sensor can be linked with other smart devices in the home to improve the indoor heating and cooling, and make your home more comfortable Low advantage design to ensure long-term battery life The built-in high-precision digital sensor can quickly and accurately find the temperature and humidity changes. The LCD screen dynamically displays real-time values, conveys the comfortable state of the home environment, is connected with the gateway and cloud platform, and the mobile APP can view current and historical temperature dataPackage Included: Sensor * 1 Manual * 1