Wi-Fi temperature and humidity sensor: 1. Remote control You can check the temperature and humidity remotely using an app, tuyasmart or smart living from your smartphone. 2. Select the time interval to update the temperature or humidity. You can choose 1 minute or 120 minutes to update the temperature and humidity through the app. The more frequent the update, the faster the battery drain. 3. Temperature unit selection in APP You can choose °C or °F as the temperature unit through the APP 4. Third-party voice control Works with amazon alexa, google assistant. 5. Battery life Uses AAA' 3 pcs, battery not included. 6. Time/Date Displays time and date when connected to the Internet. 7. Multiple connections There are 3 ways users can use the app to add our device to the smart life app. bluetooth or wifi or hotspot Product parameters: Size: 60*63*25mm Input voltage: DC4.5V LR03*3 Quiescent current: ≤30uA Low power consumption under voltage: ≤2.7V WiFi: 802.11b/g/n 2.4GHz Working temperature: -10°C~55°C Working humidity: 10%~90%RH Camera Equipped:No State of Assembly:Ready-to-Go