eContact Mobile service is a registration visit system based on an online device (smartphone/tablet) that registers the QRCode (barcode) printed on the entry visitor pass.

If you have an online device, you can get real time customer data and edit them;
The customer can enter his eContact (econtact.fieramilano.it) personal page whenever he likes and download an .xls file with the summary of his visits.

In every record you can find the data and the hour of the visiti, the preregistration/cash registration data and the customer modifications.