Four different functions rotate the display clockwise its function as follows: calendar? alarm clock? countdown? temperature 

Gregorian calendar dates for the years 1900 to 2099 a total of 200 years? months? days? weeks 

When rotated to the alarm? the alarm is set to enter the state 

Countdown to a maximum of 99 minutes and 59 seconds? after the completion of the alarm sound 

Temperature with automatic temperature measurement function? range -20 ≧ ~ 50 ≧? choose Celsius and Fahrenheit temperature display temperature display