WIFI THERMOMETER HYGROMETER: No hub required, Connecting with 2.4 GHz WiFi, you can remotely monitor the smart humidity sensor. Smart temperature sensor supports Remote Monitoring, Free App Alerts, °F/°C Reading, View History Records and Temp Humidity Graphs functionsSMART SCENE TO TRIGGER ALERTS OR DEVICES: Wall temperature gauge indoor can be used as the temperature and humidity data source of Tuya Smart, Smart Life, Amazon Alexa, Google Home. Create scene via app, Alert will be sent to your phone when beyond preset value. You can also set a scene to automatically turn your AC on when the temperature reaches the limit value, or the dehumidifier in your room starts working once the humidity is over higherVOICE CONTROL: Wifi Temperature and Humidity Sensor compatible with Amazon Alexa, Google Home. After connecting Alexa and Google, you can know the current temperature humidity by voice. For example, you can say "Alexa, what's the temperature in the Living room?"COMPACT DESIGN & VARIOUS INSTALLATION METHODS: wifi thermometer hygrometer indoor is small enough to fit in potted plants, reptile vivariums, cigar humidors, and other small spaces. You can lay this wireless remote thermometer on any spot of your house or mount it on the wall or other places with the sticker or screwsLOW POWER: Wifi temperature sensor with low power consumption microprocessor for long standby. Comes with 2*AAA Batteries, you can receive alert messages via app when the battery is low for your sensor. We provide 24 months warranty on Alexa thermometer indoor