Dahua VTO6521H - Appendix 1 Notes of Face Recording; Face Recording Best Practices

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Fingerprint Record Instruction Appendix 2
Notice
 Make sure that your fingers are clean and dry before recording your fingerprints.
 Press your finger to the fingerprint recording area, and make your fingerprint is centered on
the recording area.
 Do not put the fingerprint sensor at places with intense light, high temperature, and high
humidity.
 For the ones whose fingerprints are worn or are unclear, try other unlock methods.
Fingers Recommended
Thumbs, forefingers, and middle fingers are recommended because other fingers cannot be
put at the recording center easily.
Appendix Figure 2-1 Recommended fingers
Finger Pressing Method
 Correct method
Appendix Figure 2-2 Correct finger pressing