Time temperature indicator

A time temperature indicator (TTI) is a device or smart label that shows the accumulated time-temperature history of a product. Time temperature indicators are commonly used on food, pharmaceutical, and medical products to indicate exposure to excessive temperature (and time at temperature).

Not to be confused with Evaporative heat cost allocator or Warming stripes.

In contrast, a temperature data logger measures and records the temperatures for a specified time period. The digital data can be downloaded and analyzed.

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