Abstract: Disclosed is a device for acquiring and monitoring over time the development of at least one product-related variable. Said device comprises a support (34) that is associated with the product and supports a set of at least one sensor (26) for measuring said variable and means (30, 32, 34) for processing the data output by the sensor so as to monitor the development of said variable relative to threshold values. Said processing means are provided with a file system (30) in which the data output by the sensor is stored and a management algorithm (32) that organizes storing of the data in the file system and manages retrieval of said data. The file system and the management algorithm are mounted within the support.