• FS22/FS21M supports proprietary Live Finger Detection(LFD). If this function is activated, only live fingers can be used to access and FS22/FS21M will not capture the image from fake fingers. So fake fingers made from silicone and rubber can't be used to access.
• With MiFare card reader and writer. That is, all FS22/FS21M can be used to issue MiFare card for users.
• Support various access control methods to meet different application needs, some examples are:
  • Fingerprint only(1-to-N matching)
  • ID+ Fingerprint(1-to-1 matching)
  • MiFare card+Fingerprint(1-to-1 matching)
  • MiFare card+Fingerprint stored on card(1-to-1 matching)
  • MiFare card+PIN
  • MiFare card only
  • PIN only
• Each user can register up to 3 fingerprints
• User/Finger administration such as add, delete, edit, etc, can be done in both FS22/FS21M and FAS/PC.
• User/Finger database can be synchronized between FS22/FS21M and FAS/PC via LAN/Internet
• All communication between FS22/FS21M and FAS is encrypted by Blowfish algorithm and the key exchange between them is done by Diffie-Hellman algorithm.
• Can operate in local mode or network mode
• Support Wiegand interface with 5 selectable output formats.
• Support 's Remote Relay Unit FS30.
• There are black and silver colour enclosure for customer to select.

Local mode

• Each FS22/FS21M can store up to 3000 fingerprints
• Fingerprint recognition is done on FS22/FS21M(input finger is matched to database stored in FS22/FS21M). If using the MiFare card with/without fingerprint, the user authentication is also done locally.
• Access log is stored locally. Each FS22/FS21M can store up to 1 million access log records
• Access Log in FS22/FS21M can be sent to FAS via LAN/Internet and then exported as Excel or text format

Network mode

• Unlimited number of fingerprints can be stored in Finger Authentication server(FAS)
• Fingerprint recognition is done on FAS(input finger is matched to database stored in FAS)
• If using the MiFare card with/without fingerprint, the user authentication is also done in FAS.
• Access log is stored in FAS which can store unlimited number of access log records.
• Access Log in FAS can be exported as Excel or text format
• A maximum of 99 Fin'locks can be connected to FAS to form a cluster for large-scale access control application
• If LAN/Internet connection is accidentally broken, all FS22/FS21Ms will switch to operate in local mode automatically