User's Manual

57
Sensor Options
If the image of fingerprint is too bright or dark, sensor options can be
adjusted. The brightness and contrast is chaged by clicking keypad
button. And the gain is selected from 1, 2, 4, and 8.
The default brightness is 40, the default contrast is 20, and the
default gain is 2. These values are seletected deliberately by
NITGEN&COMPANY. We strongly recommend these default vaules.