*timer function
count-up timer
count-down timer
*time display
* 2 modes of time display: 12h /
24h
*Power-supply:1.5V (AAA Size) ×1
count-up timer
count-down timer
*time display
* 2 modes of time display: 12h /
24h
*Power-supply:1.5V (AAA Size) ×1