1. Passwords (3-12 digits) could be set by users. 2. Maximum 80 users capacity. 3. Duress code installation. 4. 3 continuity of wrong passwords entered may temporarily shut down the reader for 20 seconds and alarm will be activated. 5. 6-digit user password could be set by user. 6. Polycarbonate fireproof material for casing , white or dark-gray.