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It scans the print of the finger |
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Delicate. The finger scan unit is highly sensitive to oil smudges, dirt etc. |
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Fingerprint images are extremely dependent on the condition and correct placement of the finger. Fingerprint images are easily distorted and this confuses the scanner unit. |
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Finger print scanners have difficulty recognizing fingerprints that are not deep enough. |
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Scanning is difficult when finger is dried, cut, bristled, dirty and wet or sweaty |
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Close physical contact. (i.e. pressing your finger hard on the scanner) is required. |
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Not user friendly. No guidance on correct finger placement |
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Will have criminal overtones; a significant percentage of the population has fingerprints that do not register |
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Slow verification (2 to 3 seconds per scan). |
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Slow verification and difficulty in finger scanning results in longer queues. |
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