3 ms·

What do you mean by scanned twice? Can't someone leave and reenter?

• advisedwang 15d ago
  Maybe it has a short TTL? So it would catch a group of people that all bought fake IDs from the same place.
  • moduspol 15d ago
    All except the first person to get through. :)
  • Ryan5453 15d ago
    Generally it's configurable. The one that comes to mind first is TokenWorks's Anti-Passback feature which says "Set your custom timeframe (1 hour to 7 days)" https://www.idscanner.com/product-features/anti-passback/ https://www.idscanner.com/product-features/anti-passback/