Return visitors can present their visitor badge to scan sign in if you enable QR code functions. 

For higher security, some organisations may wish to setup a QR Codes Expiry Period. After a time range, QR codes will expire, and repeating visitors have to manual sign in again to get another one.

By default, QR codes printed on the visitor badge will not expire.

To setup expiry period, please go to Settings > Visitor Badges and update the expiration time.

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