System of coded package and apparatus

A system comprising:

• a package containing a product;
• and
• an apparatus using the product, the apparatus being refilled by the product contained in the package,
• wherein a code related to the product is associated to the package, the code being a two dimension code and the code presenting a predetermined surface Scode, and
• wherein the apparatus comprises:
• a code reader configured to read the code associated to the package, the code reader being an image capturing device, the image capturing device being defined by:
• a predetermined focal range,
• a horizontal angle of view, and
• a vertical angle of view,
• a housing structure;
• and
• a cavity inside the housing structure, the cavity extending from a back side in the housing structure to a front side at an external surface of the housing structure, the cavity comprising at least one lateral wall extending between the back side and the front side of the cavity,
• wherein the image capturing device is positioned at the back side of the cavity, and an optical axis of the image capturing device extends in a direction of a middle of the front side of the cavity,
• wherein the front side of the cavity consists of a hole in the external surface of the housing structure, the hole presenting a surface Shole such that:
• 1.2 Scode≤Shole≤6 Scode
• wherein a distance extending between the back side of the cavity and the front side of the cavity is comprised in the predetermined focal range of the image capturing device, and
• wherein the at least one lateral wall of the cavity is configured to surround the horizontal angle of view and the vertical angle of view of the image capturing device.