Abstract: Assembly including a container and a device provided for computerized monitoring of a contents of the container. The device has a flexible support and one of an electronic chip and a memory card affixed to the flexible support. The flexible support comprises a printed circuit and an antenna capable of communicating with a computerized system. The antenna is one of integrated with the flexible support and attached to the flexible support. A protective compartment is provided containing a sample of the contents of the container. The flexible support is coupled to the sample. The protective compartment is removably attached to the container so as to be recouped for the purpose of one of examination or filing.