| 摘要 |
<p>Control monitor for a deep-frozen product or a product whose conservation temperature, lower than the room temperature, is to be controlled. This monitor includes an envelope (1) which is sealed in a tamper-proof manner and, inside said envelope, a meltable object (2) whose predetermined shape is different from the internal shape of the envelope (1). This object has a melting point which is no greater than the defrosting or conservation temperature of the product, and the initial shape of the object (2) cannot be restored after it has been even partially defrosted or heated. The envelope (1) according to the invention comprises a first part (4) rendered invisible and integral with the product (3) or with a wrapping containing said product, this first part being inserted into said wrapping or envelope, and a second visible part (6) integral with the first part (4). The object (2) comprises a first part (10) at least partially filling the first invisible part (4) of the envelope (1), and a second part (11) whose shape which is at least partially different from the internal shape of the second, visible part (6) of the envelope (1); this second part (11) of the object includes at least one transparent window allowing the object to be seen.</p> |
