PORTABLE DESIGN: The room thermometer is smaller than other thermometers (35 x 35 x 16 mm). Space-saving and easy to carry. The hanging holes are designed to adapt to different positions you like. Wireless APP Control: Brifit Bluetooth 5.0 hygrometer thermometer will upload data to the APP when connected via Bluetooth. You can check the maximum and minimum temperature and humidity values through the mobile APP. You can set the temperature and humidity monitoring range. When it exceeds the range, the value on the APP will turn red. Alert notifications will also be sent to your phone. Sensitive and Accurate: The indoor thermometer is equipped with an accurate and sensitive temperature and humidity sensor. The temperature error can reach ±0.5℃ (±1°F) and the humidity error can reach ±5%. It refreshes every second to provide more accurate and faster data. Export Data Storage: The indoor temperature and humidity meter records data on the APP every 10 minutes for a total of 100 days. Wide