The place where the fingerprint is directly exposed to the sun will affect the sensitivity. Of course, the rain may cause the attendance machine to enter the water, the chip burns off, a high-tech electronic product cannot touch the water, and the dust on the fingerprint can be used to wipe the glasses. To wipe the cloth, you need to pay attention to the following three points:
1. Do not expose to the sun. Strong light has a significant impact on the collection of fingerprint information, which may result in fingerprint verification not being able to pass normally;
2, can not rain;
3, the fingerprint collection window can not be used to wipe, but use transparent glue to stick the dirty things above;
4, pay attention to timely clean up the useless data in the attendance machine, and attendance record data.