PURPOSE:To provide a freshness meter to indicate a guide of the most delicious timing or the relishing limit of each food or other article which improves or deteriorates its quality according to the storage temperature by sensing the actual preservation temperature from time to time. CONSTITUTION:The object temperature or the surrounding temperature is detected by a sensor 2 and the motion of a timer circuit 4 is stopped by a controller 7 exclusively when the detected temperature 8 is in the preset temperature range 36. The operation time of the timer circuit 4 is accumulated and displayed on the display 5 of a liquid crystal display, etc.
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