Specification of fingerprint sensor module GT-511C5
CPU: ARM Cortex M3 Core (Holtek HT32F2755)
Sensor:optical Sensor
Effective area of the Sensor:14 x 12.5(mm)
Image Size:202 x 258 Pixels
Resolution:450 dpi
The maximum number of fingerprints: 2000 fingerprints 
Matching Mode: 1:1, 1:N
The size of template:496 Bytes (template) + 2 Bytes (checksum)
Communication interface: UART, default baud rate = 9600bps after power on,USB Ver1.1, Full speed
False Acceptance Rate (FAR):< 0.001%
False Rejection Rate(FRR):< 0.1%
Enrollment time:< 3 sec (3 fingerprints)
Identification time:<1.5 sec (2000 fingerprints) 
Operating voltage:DC 3.3~6V
Operating current:< 130mA