Digital Timer

1. It can countdown and count up cycle, the maximum time is :99:99;2. When the time is countdown 00:00; it will alarm sound for 30 seconds; 3. Timer reset when depressing M and S key; 4. Press M can set minute, and press S can set second; 5. Press START/PAUSE key can start or pause the countdown and count up; 6. There is a magnet on the back of the timer; 7. Single 1.5V battery operation; 8. Use of the environment :- 10 ~ +50C;