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Note:
1. When the voltage is less than DC4.7V, the red light lightens, means the low voltage
warning.
2. In the “D” mode,when need to register user fingerprint,after press the administrator
fingerprint successfully,lifting the finger then press the same administrator finger again until
hear the music and blue indicator light flash fast,then it can register user fingerprint.
3. Any fingerprint can be used when factory default, and this function disabled after
fingerprint registered.