An advanced, stand-alone fingerprint recognition system that captures and stores fingerprint data and identifies or verifies registered users. Designed as an all-in-one system that functions entirely without an external PC, the U20-SFR can be integrated into access control units, door locks, ATMs, handheld devices, laptops, point of sale equipment, industrial equipment and many other kinds of products.

The U20-SFR consists of the SecuGen U20, an FBI-Certified FAP 20 Fingerprint Sensor, integrated with a programmable Single-Board Computer (SBC) that includes onboard CPU, SDRAM, and flash memory.

Ideal for integration in physical access control systems, time attendance systems, cabinet safes, door locks etc.



  • STQC Certified: Can be used in all Aadhaar based applications Learn more
  • Registered Device (RD) Service available  Learn more
  • Toughened glass prism: Highly resistant to scratches and damage unlike plastic prisms
  • FAP 20 compliant: Larger sensing area than most other devices in the market  Learn more
  • IP65 rated: Best in class protection against water and dust Learn more
  • Fake finger rejection: advanced technology to reject spoofed fingerprints
  • Auto-On: Automatic finger detection technology
  • Smart Capture: High quality scanning of dry, wet or scarred fingers
  • Available with USB and micro-USB options
  •  Fingerprint Management System (FMS): Built-in application with a concise set of fingerprint functions allowing it to be used right out of the box



Technical Specifications



Model U20-SFR
Certification FBI, PIV FAP 20, STQC
Operating System Linux Kernel 3.10.14
User Capacity 900 users (1,800 templates)
Host Communication Serial (CMOS)
External Interface GPIO, Wiegand
Sensor SecuGen U20
Image Resolution 500 PPI
Platen Size 18.2 mm x 22.9 mm
Sensing Area 15.24 mm x 20.32 mm
Image Grayscale 256 levels (8-bit)
Light Source LED
Supported Fingerprint Templates SecuGen Proprietary, ANSI INCITS 378-2004, and ISO/IEC 19794-2 formats
Other Features Auto-On™, Smart Capture™
Supply Voltage 3.3V or 5V
Current Consumption 220 mA (max.)
Dimensions 33.9 mm x 49.0 mm x 22.3 mm
Weight 24 g
Operating Temperature -20° ~ 65°C
Water Resistance Optional