The Pak-Sense temp monitors really do work.
We've been using them for the past two summers now, to monitor domestic shipping of our wines throughout the country.
Given some of the limitations of the product-- 3-month battery life, a lack of ability to imbed the monitor into the product in any non-tamperable way, unit cost-- I think its uses are pretty limited.
But what it does, it does well. It will no doubt be of interest chiefly to:
-Importers who wish to monitor storage temps from the producer's cellar door to the importer's warehouse
-Wineries who wish to verify temps when shipping to customer
-Serious collectors who want to verify shipping conditions of expensive wines they've purchased
regards,