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Part of the recommendation involves including shock indicators / tell-tales attached directly to the product. After some initial Googling, where I didn't even know what term I wanted (not tell-tales, not sensors...), I stumbled upon "indicators" and got some vendors and some descriptions of capabilities, applications, prices, etc.
Now, I'm looking for a similar passive device that can be attached to (or inside) a product that will record (by color change or other indication) if it has ever been exposed to a given maximum or minimum temperature. I know I've seen something in the past, but I just can't remember what it was called, to find it again. So far, all I'm seeing are min-max recording thermometers, mostly devices with batteries, and therefore a short life, intended to track the handling of a shipped product from one sender to one recipient - a matter of days or weeks, at most. I'm looking for something that the service people can view when they open a "broken" product that has been RMA'd possibly 5 years after it was sold and see that it was once subjected to -35 degrees Celsius (or +150 or whatever).
Maybe somebody in medical devices, pharma, nuclear, other industries with sensitive equipment, has seen what I'm looking for and can point me.
-k
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