On-screen display The screen shows the time, alarm, indoor and outdoor temperature, temperature trend, calendar, and frost alarm. The alarm clock function provides a health-oriented reminder to wake up. The time display can be switched between 12-hour and 24-hour formats. F and °C switch and viewing comfort Switch between Fahrenheit and Celsius to match your preference. The large LCD screen provides clear and accurate data. The digital thermometer voltmeter display stand can be adjusted 180 degrees for easy viewing, delivering a clear visual experience from multiple angles. LED backlight One-button backlight with soft eye protection. The backlight is bright at night for quick access to the time, while during the day it maintains a soft brightness for comfortable viewing. Outdoor and travel use Car thermometer clock is suitable for outdoor tests and travel. Check indoor temperature at home daily to maintain a healthy lifestyle. Indoor and outdoor monitoring supports safe driving and helps create a comfortable office environment.