About that article High -precision sensor -constructed -upgraded MEMS sensor, updated once a second to provide more timely and higher accurate data. The temperature error may be as high as 0.5 ( 1 ), and the water defects can be as high as 5 %. The 5.0 Bluetooth chip used, the temperature sensor can provide wireless monitoring in real time to achieve temperature (-20-60 C) and humidity (0-100 RH). The connection distance (in open areas) to be upgraded to 50m (164 feet). Wireless application control -temperature sensor uploads data to the application when connecting to the application through Bluetooth. You can check the maximum and minimum temperature and humidity values on the application. A smart device can connect to up to 100 temperature sensors at the same time, and supports Android 4.3 or updated iPhone 4S or updated temperature sensors. Smart alert reminder -The data on the application becomes red and send a message to your mobile phone to remind you and your family to know that the temperature and humidity change when the data exceeds your preset value. It can be used to monitor houses, pets, refrigerators, refrigerators, freezers, step -by -coolers, wine cellars and greenhouses. The export of data storage -wireless thermometer humidity meter recorded data every 10 seconds in the application, only 100 days in total. (Please make sure your mobile phone arrives at least once a day.) You can download data in CSV format for free by registering account. Mini and portable design -Our wireless temperature and moisture sensor smaller than other moisture (1.5 x 1.5 x 0.62 inches), and built in 2477 batteries, about 1.3 ounces per day. The life of the battery is about 10 months. The hanging holes are designed for different positions you want. Space -savings and practical.