1. Time Display: The clock defaults to displaying AM 12:00 upon power-on.
2. 12-hour and 24-hour formats are switchable; the default is the 12-hour format.
3. Calendar Display: The default display upon power-on is January 1, 2020, AM 12:00; the default date display format is M-D.
4. Indoor Temperature Display: 0°C~50°C (32°F~122°F) Accuracy: ±1°C
5. Indoor Humidity Display: 20%~99%
6. Outdoor Temperature Display: -50°C~70°C (-58°F~158°F) Accuracy: ±1°C
7. Outdoor Humidity Display: 20%~99%
8. Temperature units are switchable: °C/°F. Default display unit: Temperature [℃]
9. Indoor and outdoor temperature and humidity maximum/minimum value recording.
10. Three-level arrow indicator for indoor and outdoor temperature and humidity trends.
11. Three-level graphic display of indoor and outdoor temperature and humidity comfort levels.
12. Audible alarm for indoor temperature and humidity upper/lower limit
13. Screen size: 4.72 inches
