• Enhanced Visible Light Facial Recognition is the latest technology of ZKTeco, aimed to overcome shortcomings of previous facial recognition and achieve an all-rounded upgrade on whatever performance and reliability.
  • G4L is a multi biometric identification terminal, notably offers enhanced Visible Light facial recognition and SilkID fingerprint authentication technology.
  • Compared with other near-infrared facial identification devices, G4L, equipped with advanced Visible Light Facial Recognition technology, enables quicker automatic face detection and facial recognition when a target enters its detection distance from 0.5m to 2.5m.
  • With new deep learning algorithms applied, the anti-spoofing technology performance has been dramatically heightened and can prevent different types of photos and video attacks.
  • Also, with the cutting-edge 3D Neuron Fingerprint Algorithm, G4L precisely authenticates dry, wet, or rough fingerprints efficiently and accurately. Apart from Visible Light facial recognition and SilkID fingerprint authentication, G4L also supports identification with RFID cards and passwords.


User  10,000
 Face  10,000
 Fingerprint  10,000
Card  10,000
Transaction 1,000,000
Communication TCP/IP / Wi-Fi / Wiegand Input / Wiegand Output / RS485 / USB Host
Access Control Interface Lock Relay Output / Exit Button / Alarm Output / Door Sensor
  900MHz Dual Core CPU
Memory 512MB RAM/ 8G Flash
 2MP WDR Low Light Camera
 7-inch Touch Screen, 1280*720 pixels
Linux Operating System
Adjustable Monitor Brightness
Standard Functions ID Card / Work Code / ADMS / DST / Bell Schedule / Attendance Status Auto-Switch / Record Query / Photo ID
Optional Functions   13.56 MHz IC / LEGIC Card
Special Functions  Visible Light Facial Recognition
 Alive Face Detection
Multiple Biometric Verification Modes
Compatibility BioTime 8.0 / ZKBioSecurity (Time & Attendance)
Additional Info
Algorithms  ZKFace V5.8 / ZKFinger V10.0
Working Temperature 0°C – 50°C (32°F – 122°F)
Working Humidity <90%
Dimensions (W*H*D)  264*112*54.8 mm
Facial Recognition Speed  ≤0.3 sec
Facial Recognition Distance   0.5m ~ 2.5m
Power DC12V 3A


G4L DataSheet