1)punch card attendance machine of good price 2) Powerful and localized software 3) ... optical fingerprint sensorScan area 17mm×21.5mmResolution 500DPIIdentification method Fingerprint 1:1, 1:N,pass word, ID card+fingerprintFRR <0.01%FAR ... <0.0001%Identification time ≤1s, 3,000 fingerprints,1:NRegister method Fingerprint, password,cardFingerprint capacity 3,000 fingerprintsUser capacity ...