... 2.SamSung 32 bit ARM920T, strong image processing, high performance and reliability. 3.Miaxis SM-621 optical sensor, scratch-resistant, ... durable, blue background light. 4.Support professional access control, and one user, multi-users combination door open, entry control for ... 17mm×21.5mmResolution 500DPIIdentification method Fingerprint 1:1, 1:N,pass wordFRR <0.01%FAR <0.0001%Identification time ≤1s, ...