Automizer Hand Held Timer with Alarm Features:12 hour or 24 hour mode; default 12 hour mode; such as AM 12:00 or PM 12:00 Clock Alarm list can be set Auto detects temperature from -9 degree Celsius
to 70 degree Celsius one time per 10 seconds. Temperature limit can be set from -9 to 70 degree Celsius, it shall show "Lo" or "Hi" if exceed the limit. It can count down max. to 23 hours 59
minutes, it won't show "H" or "M" when it counts down just in second. Power supply 1.5v