Patent ID: 7275866

Claim:
A digital thermometer having a thermometer body comprising: a processing unit serves to integrate the signals of the digital thermometer and set some operations; the processing unit calculating temperature from a heating sensing unit and then transferring temperature signals; before a predetermined measured time, if a thermal balance has been achieved, the processing unit will conduct a backlight plate to emit light so as to alert the user that the measurement will be completed, and the processing unit will stop the measurements within a predetermined time period and then temperature is re-measured, wherein said predetermined measured time is a predetermined temperature measuring time for said thermometer; the heating sensing unit for sensing temperatures of an object to be measured; wherein the thermal balance is a thermal balance between the heating sensing unit of said thermometer and an object; a display unit for receiving electronic signals from the heating sensing unit so as to display the measured temperature; and the backlight plate for receiving signals from the processing unit and emitting light to illuminate the display unit.