Everything in PortalBase that people walk up to can have a QR code: a forklift, an arrow board, a site, a document. Each one's page has a QR button, and the QR codes screen prints a whole sheet of labels at once.
Scan a code with the app and that thing's page opens. For equipment, it shows if it's in service, when it was last checked, and the check to start. A phone without the app gets a page that says what it is and how to get the app.
The QR codes screen lists every code, what it opens and how many times it's been scanned.

Sample data from our own demo company.