This intelligent temperature and humidity sensor supports two ways of WiFi and BT connection, also with advanced functions such as high or low temperature humidity alarm, date and time display functions and so on, come and try, it won't let you down. Characteristics: High or low temperature and humidity alarm function, if the current temperature or humidity exceeds the set data, the sensors will automatically alarm and you will receive a message in the mobile phone APP. Data update frequency can be adjusted from 1 to 120 minutes according to your need, you can choose the frequency you want to use. There are graphics showing changes in temperature and humidity in the app so you can understand the trend of changes in temperature and humidity. With and temperature unit conversion function. You can select the unit to display according to your needs. The switching speed is related to the set data update frequency. You can change the temperature reporting cycle to 1 minute and then change it back after setting. Multiple mounting options: Can be put on a desk or hung on a wall. If you want linkage functions such as use of air conditioners, humidifiers etc., you need to use the universal infrared remote control to achieve this function. (Infrared remote controls are not included. ) The sensors support Alexa and Google Home, so you can voice check the current temperature and humidity, free your hands. Update the temperature and humidity as you like: User can select the temperature or humidity reporting time. For example, 1 min or 120 min. The more frequent the update, the faster the battery will run out. Voice control: support Alexa, google assistant, knowledge of temperare with simple voice control commands, e.g. : "Alexa, what's the temperature here? "(do not support Alexa's understanding of moisture) LCD display: The large LCD screen dynamically displays real-time values, transmits the comfortable state of the home environment, and the mobile application can display current and historical temperature data Alert: send push notifications via the APP when the temperature or humidity exceed the preset value or ADDITIONALLY - we also provide a second level of security (added service), you can choose to open the SMS notification or phone call alert function on the App View temperature humidity remotely, don't need a hub: use 2.4G Wi-Fi network, easy to set up, view temperature humidity in the app "smart life" anytime anywhere Technical data: Material: ABS Color: white, black (optional) Wi-Fi: 2.4G IEEE 802.11 b / g / n Temperature measurement ranges: -10 55 Temperature accuracy: 0.3 Humidity measurement ranges: 0% 99% RH Humidity accuracy: 0.3% RH Quiescent Current: 30uA Packing List: 1 * temperature and humidity sensors 1 * English manual