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  • Bio31S


Bio31S is an advanced embedded electro-silicon fingerprint module developed by ZKTeco specialized for the system integration device.It adapts ZKTeco ZKFinger V10.0 fingerprint algorithm as core, and adapts high-performance ARM core processor with internationally top semi-conductor fingerprint sensor. It is an offline fingerprint module with ultra-high performance.


Bio31S Open application program interface (such as SDK) available
Bio31S Fingerprint enrollment, image capture, template extraction, fingerprint comparison (including 1: 1 and 1: N), template deletion and more functions


Model Name Bio31S
Material Electro-Silicon
Flash 32 MB
Encrypted Fingerprint Data Yes
Power Consumption 5V 200mA (normal operation); 5V 100mA (idle mode)
Fingerprint Liveness Detection No
LED None
Power Voltage 5V (USB) / 3.3V (TTL-RS232)
Power Current 200mA
Communication UART (115,200bps / TTL3.3V) / USB 2.0
Interface Socket Molex 51021- 0700 ( 7 pin; 1.25 mm)
Image Resolution 508dpi
Effective Collecting Area  10.4 * 14.0mm
Image Size 208 * 288 pixel
Module Size (L*W*H) Motherboard:42.0 * 26.0 * 5.08mm(L * W * H)
Sensor:34.06 * 20.4 * 2.47mm(L * W * H)
Image Formats RAW, BMP, JPG
Template  ZKFinger V10.0 ; ISO19794-2 ; ANSI-378
Template Size  1- 4KB (ZKFinger V10.0); 1,568 B (ISO 19794-2)
Grayscale  256
Operating Environment  -20 °C ~ +50 °C; 90% r.h.
ISO/ANSI Support  ISO-19794-2/4 ANSI-378


Bio31S Data Sheet

1.06 MB


Bio31S Data Sheet