The SF300 is an IP based fingerprint terminal, which operate in both network mode and standalone mode. it can connect with ZKAccess3.5 software for access control and time attendance management. Wiegand output makes SF300 flexible to connect with ZKTeco or any 3rd party controllers as a slave reader, Additionally, wiegand input allows two units of SF300 to configure with each other and utilize Master & Slave solution, which requires user verification at both entrance and exit. Meanwhile, anti-passback function can be used to maximize the security. Auxiliary input interface allows SF300 to connect with an external source, for instance, a smoke detector or emergency switch. Once the linkage function is enabled through the machine menu, the device would generate an alarm signal and open the door in case of emergency.

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Product Features

2.8-inch touch screen, color display with graphical UI for easy operation

Up to 24 user-defined schedules that can be activated on a daily bell alert (optional)

Prompt audio acceptance or rejection signals for valid or invalid fingers

Compact and lightweight, small size for 86mm (L) x 86mm (H) socket installation

TCP/IP or RS485 communication for various networking environments

Supports USB flash drive for offline data management

Built-in auxiliary input with enhanced flexibility to link with wired detector or emergency switch

Up to 15 multi-verification methods to enhance security level

Standard access control features such as Time zone, Holiday, A&C Group, Unlock combination etc.

Duress Alarm offers effective protection against duress by threats

Tamper proof switch and multiple alarm outputs

Multi-languages customizable

Technical Specifications




2.8 inch resistive touch screen

Fingerprint Sensor

ZK Optical Sensor (500DPI)

Algorithm Version

ZKFinger VX10.0



Fingerprint Capacity


Card Capacity (Optional)

5,000 (EM/IC Card)

Records Capacity


Access Control Interface

Electric lock, Door sensor, Alarm, Exit button, Door Bell

Wiegand Signal

Wiegand input & output

Aux. Input

1ea for linkage function

Power Supply

DC 12V/3A

Operating Temperature

0 ~ 45°C (32°~113°F)

Operating Humidity

20 ~ 80%

Dimension(L x W x H)

105 x 105 x 34mm