CT02 digital thermometer clock

functions1 from 2000 to 2059 , with 21H and 24H system ,12H at the beginning.2 auto temperature function ,from -9 to 50 ;celsius temperature and the Fahrenheit are selectable.3 with didi alarm ,the alarm time lasts one minute4.five minutes snooze function5 voltage:DC3V(AA size X 2 pieces)6 and solder option selection