Heating device with alarm function

A heating device with an alarm function comprising:

• an alarm unit;
• an input module for setting a target temperature and an alarm activation time;
• a heating unit for heating a container;
• a temperature sensor for sensing a current temperature of the container;
• and
• a controller electrically connected to the alarm unit, the input module, the heating unit, and the temperature sensor, the controller having a timer for providing a current time;
• wherein the controller controls the heating unit to heat the container when the current time reaches a predetermined time previous to the alarm activation time, determines whether the current temperature reaches the target temperature, and determines whether the current time reaches the alarm activation time;
• the controller selectively controls the heating unit to stop heating the container or keep the current temperature at the target temperature when the current temperature reaches the target temperature or when the current time reaches the alarm activation time;
• and the controller controls the alarm unit to output an alarm when the current time reaches the alarm activation time.