| 摘要 |
<p>An apparatus for warning of an expiration date includes a casing, a processing unit located in the casing, and an attachment unit connected to the casing. The processing unit includes a power supply unit, a switch and a warning unit electrically connected to one another. The warning unit warns a user of the expiration date of an object when the expiration date is reached. The attachment unit is connected to the casing. The attachment unit can be detachably attached to the object.</p> |
