ADH Technology Co. Ltd.


Optical Fingerprint Module




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  • GT-521F32 / GT-521F52 (UART) New!!!

    Optical Fingerprint Module



    The GT-521F32 / F52 is high performance fingerprint module

    that is able to be waken by touching the metal frame of sensor.

    It is one chip  fingerprint module  designed for  integration  into

    products with UART interface. It is configured as a USB mass

    storage device so it no need additional effort to handle driver.


    The active area  allows stable  imaging and ability to  cope with

    mass market applications in need of both security&convenience.


    The reader with theMCUdevice is high performance,low power consumption 32-bit microcontrollers based around

    an ARM® Cortex™-M3 processor core and the fingerprint algorithm is processed on it.




    • Simple UART & USB communication protocol 
    • Complies with USB 2.0 full-speed (12Mbps) specification 
    • Ultra-thin Optical Sensor
    • Resolution 450 DPI
    • 200/3000 fingerprints storage
    • Wake up on Finger Function
    • Works well with dry, moist or rough fingerprints
    • Anti-Scratch with surface high hardness≧ 5H
    • 1:1 verification, 1:N identification
    • Reading & writing fingerprint template(s) from/to the device
    • High-accuracy and high-speed fingerprint identification technology
    • Downloading fingerprint image from the device
    • Convenient & Safe & Facilitation—Just one touch and easy to enroll



    A demo of door lock:



     An application of door phone :



    You will see a little delay between fingerprint reading and door opening, because it calls the system, establishes a video call ( it records all movements in the cloud) and , just then, it sends the opening order.

    It is an application made by SURiX ( for iDENTA ( .



    Another application of time recorder :


  • GT-511C3 / GT-511C5 (UART)

    Optical Fingerprint Module














  • GT-511C1R / GT-511C11 (UART)

    Optical Fingerprint Module


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