Product Features:
Strong Functions
Independently conduct the functions of fingerprint enrollment, image processing, minutiae extraction, templates storage, fingerprint verification (1:1) or fingerprint searching (1:N) under the command of HOST( PC or MCU).

Easy Develop
Module has rich commands, equivalent to fingerprint function base.
Developers do not need to know the fingerprint verification professional know-how and can develop strong function fingerprint verification application system according to control instructions of SM-621.

Rich Interface
Power supply: DC 3.6-7V
Serial communication interface: standard UART protocol, two electricity levels, baud rate alternative

Low consumption Design
Provide user sleep function control interface, suitable for low consumption condition

Strong adaptability
Algorithm function of SM-621 module is excellent. It is designed according to optical imaging theory and has good function of proof and fault-tolerant for poor quality fingerprints.

Wider suitable people application scope.

SM-621 module adopts self-adaptive parameters adjusting mechanism during the fingerprint image reading, thus it makes good imaging quality for dry or wet fingers

Adjustable safety level
Users can set the different safety level by themselves according to different application condition

Suitable for different application condition 
Easily set the SM-621 module on different work mode according to application system requirement.
Select module with different fingerprint templates capacity according to the requirement of users’ number on different conditions

Product Specifications:
Fingerprint enrollment time<250ms 
Fingerprint search time <2.5s (average value for 1776 fingerprints)
Matching Speed <200ms for 1-to-1 verification
Resolutions 500DPI
Image Size 256*304 pixels
Security level 5, adjustable
Capacity 1776 fingerprints
FAR<0.0001% 
FRR<0.1%
Supply power 3.6V-7V
Working current <120mA
Peak current <150mA
Communication interface TTL(RS232)
Communication Baud rate 38400bps,57600bps,115200bps
Working temperature -10°C~50°C
Working humidity 45%RH~85%RH (no dew)
Module dimension 56.0*38.5*8.5mm(L*W*H)
Sensor dimension 25*21*55mm(L*W*H)

Product Application Area:
Fingerprint time attendance and access control 
Fingerprint safety cabinet and fingerprint lock
IC card system