
Wireless APP Control: Bluetooth 5.0 Hygrometer Thermometer uploads data to APP when connected via Bluetooth. You can check the max and min temperature and humidity values on APP from your phone. You can set the temperature and humidity monitoring range, and the value on the APP will turn red when it is out of range. The alert notification will also be pushed to your phone. Sensitive and Accurate: Indoor Thermometer with accurate and sensitive temperature and humidity sensor. The temperature error can be ±0.5℃ (±1℉), the humidity error can be ±5%. It refreshes once per second to provide more accurate and faster data. Export Data Storage: Digital indoor thermometer hygrometer will record data every 10 minutes in the APP, which is a total of 100 days. Portable Design: Indoor Thermometer Smaller than others (35x 35 x 16 mm). Space-saving and portable. A hanging hole is designed for various locations as you like. It can be used for about 200 days with a CR2477 battery. Wide Applications: