Bio31M

Ultra Slim USB Fingerprint Module

Further Enquiry?

Contact Us

  • Overview
  • Function
  • Specification
  • Configuration
  • Download

Bio31M is an advanced embedded electro-capacitive 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 and internationally top semi-conductor fingerprint sensor. It is an off-line fingerprint module with ultra-high performance.

ZKTeco biometrics forum website, please click here



• The algorithm supports automatic correction recognition, supports 360 ° rotation collection match

• Fingerprint entry, image capture, template extraction, fingerprint matching (including 1: 1 and 1: N), template deletion and other functions

• Light and small, can be flexibly embedded into a variety of products

• Can provide an open application program interface (SDK)

Technical Specifications
Model Name Bio31M
Material Electro-Silicon
CPU 280MHz DSP
Flash 32 MB
SoC RTOS
Encrypted Fingerprint Data YES
Water Splash No
Dry, Wet, or Rough Fingerprints Work well
Power Consumption 5V:200mA Scanning;5V:100mA idle (waiting for finger)
Live Fingerprint Detection No
LED None
Product Certifications FCC, CE, RoHS
Power Voltage 5V (USB) / 3.3V (TTL-RS232)
Power Current 200mA
Communication UART (115200bps / 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*288pixel
Module Size Motherboard: 42.0*26.0*5.08mm (L*W*H)
Sensor:34.06*20.4*2.47mm(L*W*H)
Image Format RAW, BMP, JPG
Template ZKFinger V10.0 ; ISO19794-2 ; ANSI-378
Template Size 1- 4KB (ZKFinger V10.0);1568 B (ISO 19794-2)
Gray Level 256
Operating Environment -20 °C ~ +50 °C; 90% r.h.
ISO/ANSI Support ISO-19794-2/4 ANSI-378
Bio31M
1.61MB Data Sheet 2017-07-03
ZKTeco Fingerprint Modules Datesheet
7.34MB Data Sheet 2017-07-03
Upcoming Events