title: How Long is RFID Tag Session 2 Persistence?
body: <p>When doing scanning with passive RFID tags, you can set the SESSION to '2' in order for the tag state of 'B' to persist for &quot;an indefinite amount of time&quot; even when it is not being energized by the scanner, according to the standards. Your tag will then not be visible to the scanner until this indefinite amount of time expires.</p>
  <p>My question is, does anyone have any idea what the maximum amount of time is for RFID tags? I'm sure it's different for different tag manufacturers , etc. However, are we talking seconds, minutes, hours, or even days? I don't want to keep seeing the same tags over and over again while doing a scan in the storeroom, but at the same time, I don't want the tag to be hidden if they need to be scanned again at a later time.</p>