Features 1、【Mobilephone APP Control】: Users can check the current temperature and humidity, temperature and humidity trend graph, comfort indication, and history records through a mobilephone APP and comprehensively master the indoor environmental conditions over time. 2、【Low /u0026amp; High Temperature Reminder】: The wifi temperature and humidity meter offers customizable high and low-temperature alerts and automatically alerts the user when the temperature reaches the preset limit, enabling you to promptly respond to environmental changes and ensure the most comfortable living conditions for your pets or sensitive indoor environments. 3、【Flexible Temperature Unit Switching】: Users can switch the temperature unit between Celsius and Fahrenheit for more convenient operation, easily accommodating your preferences and international standards. 4、【Voice Query Function】: The thermo-hygrometer supports linkage with third-party intelligent speakers. Users can query the indoor temperature and humidity by voice commands for added convenience and accessibility, compatible with Alexa and Google Assistant speakers. 5、【Intelligent Linkage】: The thermo-hygrometer can be linked with other intelligent devices at home, such as air conditioners, humidifiers, etc., to automatically adjust the indoor temperature and humidity and enhance the comfort and energy efficiency of living, facilitating smarthome automation. Widely used in homes, schools, offices, hotels, etc. Specification Name: Temperature and Humidity Tester Material: ABS+PC Temperature measurement ranges: -20℃ to 60℃ Humidity measurement ranges: 0%RH-100%RH Package List 1 * Temperature and Humidity Tester