The finger scanner detects the fingerprint by means of a line sensor and
subsequently processes it. It compares the result with that of the
biometric information extracted from the reference fingerprint image and
opens the door in the event of a match. The finger scanner only works
correctly and reliably with the front phalanx print. Swipe your finger
steadily and evenly over the sensor in the correct position.
The models with RFID functionality detect and identify RFID transponders.