Features: 1. High temperature and low temperature alarm When the set temperature threshold is exceeded, a notification will be sent to the mobile device 2. High humidity and low humidity alarm When the set humidity threshold is exceeded, a notification will be sent to the mobile device 3. Real-time monitoring Powered by 3 x AAA 1.5V batteries (battery not included), low power consumption, can operate for approximately 1 year under default system settings Data update frequency ranges from 1 to 120 minutes, adjustable based on user preference. Shorter intervals may reduce battery life 4. Temperature and humidity graphing Track temperature and humidity changes via the app and view data trends in graphical format for easier interpretation of recent changes 5. Multiple mounting options Can be placed on a flat surface or wall-mounted. Designed for cordless operation, offering convenient and clean placement 6. LCD display Equipped with an LCD screen that shows temperature, humidity, time, and date. Time and date are automatically synchronized 7. Scene automation The sensor can serve as a temperature and humidity data source for Tuya Smart, Smart Life, Alexa, and Google Home, enabling automation routines. This feature requires compatibility with a universal infrared remote control 8. Temperature unit selection Supports switching between Celsius and Fahrenheit. Users can select the preferred unit through the app. Unit change response time depends on the selected data update interval. For faster switching, set the update frequency to one minute, switch the unit, then adjust back to the desired interval 9. Third-party voice assistant support Compatible with Alexa and Google Assistant, allowing voice queries for current temperature and humidity readings Product Specifications: Size: 60 x 63 x 25 mm Power: 3 x AAA 1.5V (battery not included) Wi-Fi support: 2.4 GHz IEEE 802.11 b/g/n Temperature measurement range: -10C to 55C Temperature accuracy: 0.3C Humidity measurement range: 0% to 99% RH Humidity accuracy: 3% RH