Perishable product electronic label

An electronic component can be contained in the label in the executed judging whether it can harm to the label the fixed to the commercial quality of the product storage life or security the time of the temperature value whether to reach the examining. The label can be used in the temperature of and / or the useful time of the needed small center processing the wide type on the object. The label system includes a measuring and calculating circuit and the output signal indicates that it the bended sale of time and after it has been discarded but not to sell in the time indicator. The label can be used this utility model claims a flexible the utility model relates to the loss of the label in the form of the array typically through a small battery to supply electricity. The method can comprises providing a plurality of the temperature change of the oscillator or the time base in a logic circuit of the inner counted the oscillator the period of time to determine whether one or more predetermined overall cycle counter is to achieve and when the total period of counter is to send out signal.