Temperature Humdity Update as you want: User can choose the temperature or humidity report time.such as 1min or 120min.the more frequent the update, the faster the battery will drain. Voice 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 alexa) LCD 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 data Alert: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 app Remotely View temperature humidity,no hub Needed:Use 2.4G wifi network,easy to set up,view temperature humidity in the app "smart life" anywhere,anytime size: 64 x 61 x 25mm Material:ABS colour:White Package Contents: 1 x wifi temperature sensor Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.