The Event Check-in application is for the event staff to check-in attendees at Precision events. Registered attendees are either checked-in via QR code scan or registration lookup.
To test the QR code please select the following event:

Winter Conference | Pontiac, IL - PTI Farm
Pontiac, IL
Tuesday, January 19th, 9:00 am - 3:15 pm

Then scan the attached QR code to check the registrant in.