Connect unique HEX code to equipment

We have QR codes which included an HEX code for Onix.

Usually we connect them through scanning them with our Onix app so that they are tagged.

The problem now is that the tags are abroad and we want them to link them to specific items through the HEX code.

Is it possible in Onix to add the HEX code in an existing product so we can connect them remotely?