User guide

S900 User Guide
the sensor.
Be sure to maintain contact with the fingerprint sensor for 2 full
seconds, until the S900 responds.
The S900 has both audio and visual indicators which respond when the
S900 senses a finger.
Proper Finger Placement
The user’s finger should completely cover the sensor. The finger should
be placed flat and in the center of the sensor. The finger should cover at
least 80% of the sensor as shown below:
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