Features: Smart design: It can stand on the table with the bracket unfolded. With the hanging hole at back, it can also be hanged on the wall. High accuracy: Inside thermometer has a high accuracy of 5%RH and 1F, making it ideal for measuring fluctuating readings like in a greenhouse. Indoors and outdoors: This hygrothermograph can test the indoor and outdoor humidity and temperature at the same time, which are displayed on the LED screen respectively. The wireless transmission distance in the open air can reach up to 100m. With obstacles, the distance is limited to 30m. It can help you be aware of the changes in the living environment. It\'s important for allergic rhinitis patients and those who are highly sensitive to temperature and humidity.