Digital Thermometer&Hygrometer

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 30seconds;
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