1. High-precision indoor thermometer/hygrometer. The temperature-humidity indicator displays indoor temperature, humidity, and comfort indicators, providing you with accurate real-time readings. It helps you adjust the humidifier, dehumidifier, and humidity settings. Ideal for monitoring family living conditions and health to prevent colds, dry skin, asthma, allergies, and mold.2. Large LCD display for easy reading. The large LCD displays large numbers simultaneously, allowing data to be read even from a distance. What's more, its elegant black appearance makes it suitable for all applications.3.2 Setting Method - Hanging & Standing. The thermometer/hygrometer's free positioning allows you to hang it on the wall using a hanging hole or place it on a flat surface using a support frame. .4. Easy to use. There are only 2 buttons. C/F is switchable and can be changed from C to F with the C/F button. The digital thermometer-hygrometer records the maximum and minimum data of temperature and humidity. You can also easily reset the MAX/MIN record by pressing the CLEAR button. Easy to use, no more confusing.