ZKTeco Green Label G4L User manual

Thank you for choosing our product. Please read the instructions carefully
before operation. Follow these instructions to ensure that the product is
functioning properly. The images shown in this manual are for illustrative
purposes only.
For further details, please visit our Company’s website
www.zkteco.com.
USER MANUAL
Applicable Models: G4L
Version: 1.1
Date: July 2020
English

G4L User Manual
Page | 1 Copyright©2020 ZKTECO CO., LTD. All rights reserved.
Copyright © 2020 ZKTECO CO., LTD. All rights reserved.
Without the prior written consent of ZKTECO CO., LTD, no portion of this manual can be copied or
forwarded in any way or form. All parts of this manual belong to ZKTeco and its subsidiaries (hereinafter
the "Company" or "ZKTeco").
Trademark
is a registered trademark of ZKTECO CO., LTD. Other trademarks involved in this manual are
owned by their respective owners.
Disclaimer
This manual contains information on the operation and maintenance of the ZKTeco product. The
copyright in all the documents, drawings, etc. in relation to the ZKTeco supplied product vests in and is
the property of ZKTeco. The contents hereof should not be used or shared by the receiver with any third
party without express written permission of ZKTeco.
The contents of this manual must be read as a whole before starting the operation and maintenance of the
supplied product. If any of the content(s) of the manual seems unclear or incomplete, please contact
ZKTeco before starting the operation and maintenance of the said product.
It is an essential pre-requisite for the satisfactory operation and maintenance that the operating and
maintenance personnel are fully familiar with the design and that the said personnel have received
thorough training in operating and maintaining the machine/unit/product. It is further essential for the
safe operation of the machine/unit/product that personnel have read, understood and followed the safety
instructions contained in the manual.
In case of any conflict between terms and conditions of this manual and the contract specifications,
drawings, instruction sheets or any other contract-related documents, the contract conditions/documents
shall prevail. The contract specific conditions/documents shall apply in priority.
ZKTeco offers no warranty, guarantee or representation regarding the completeness of any information
contained in this manual or any of the amendments made thereto. ZKTeco does not extend the warranty
of any kind, including, without limitation, any warranty of design, merchantability or fitness for a particular
purpose.
ZKTeco does not assume responsibility for any errors or omissions in the information or documents which
are referenced by or linked to this manual. The entire risk as to the results and performance obtained from
using the information is assumed by the user.

G4L User Manual
Page | 2 Copyright©2020 ZKTECO CO., LTD. All rights reserved.
ZKTeco in no event shall be liable to the user or any third party for any incidental, consequential, indirect,
special, or exemplary damages, including, without limitation, loss of business, loss of profits, business
interruption, loss of business information or any pecuniary loss, arising out of, in connection with, or
relating to the use of the information contained in or referenced by this manual, even if ZKTeco has been
advised of the possibility of such damages.
This manual and the information contained therein may include technical, other inaccuracies or
typographical errors. ZKTeco periodically changes the information herein which will be incorporated into
new additions/amendments to the manual. ZKTeco reserves the right to add, delete, amend or modify the
information contained in the manual from time to time in the form of circulars, letters, notes, etc. for better
operation and safety of the machine/unit/product. The said additions or amendments are meant for
improvement /better operations of the machine/unit/product and such amendments shall not give any
right to claim any compensation or damages under any circumstances.
ZKTeco shall in no way be responsible (i) in case the machine/unit/product malfunctions due to any
non-compliance of the instructions contained in this manual (ii) in case of operation of the
machine/unit/product beyond the rate limits (iii) in case of operation of the machine and product in
conditions different from the prescribed conditions of the manual.
The product will be updated from time to time without prior notice. The latest operation procedures and
relevant documents are available on http://www.zkteco.com
If there is any issue related to the product, please contact us.
ZKTeco Headquarters
Address ZKTeco Industrial Park, No. 26, 188 Industrial Road,
Tangxia Town, Dongguan, China.
Phone +86 769 - 82109991
Fax +86 755 - 89602394
For business related queries, please write to us at: [e-mail].
To know more about our global branches, visit www.zkteco.com.

G4L User Manual
Page | 3 Copyright©2020 ZKTECO CO., LTD. All rights reserved.
About the Company
ZKTeco is one of the world’s largest manufacturer of RFID and Biometric (Fingerprint, Facial, Finger-vein)
readers. Product offerings include Access Control readers and panels, Near & Far-range Facial Recognition
Cameras, Elevator/floor access controllers, Turnstiles, License Plate Recognition (LPR) gate controllers and
Consumer products including battery-operated fingerprint and face-reader Door Locks. Our security
solutions are multi-lingual and localized in over 18 different languages. At the ZKTeco state-of-the-art
700,000 square foot ISO9001-certified manufacturing facility, we control manufacturing, product design,
component assembly, and logistics/shipping, all under one roof.
The founders of ZKTeco have been determined for independent research and development of biometric
verification procedures and the productization of biometric verification SDK, which was initially widely
applied in PC security and identity authentication fields. With the continuous enhancement of the
development and plenty of market applications, the team has gradually constructed an identity
authentication ecosystem and smart security ecosystem, which are based on biometric verification
techniques. With years of experience in the industrialization of biometric verifications, ZKTeco was
officially established in 2007 and now has been one of the globally leading enterprises in the biometric
verification industry owning various patents and being selected as the National High-tech Enterprise for 6
consecutive years. Its products are protected by intellectual property rights.
About the Manual
This manual introduces the operations of G4L product.
All figures displayed are for illustration purposes only. Figures in this manual may not be exactly consistent
with the actual products.
Features and parameters with ★are not available in all devices.

G4L User Manual
Page | 4 Copyright©2020 ZKTECO CO., LTD. All rights reserved.
Document Conventions
Conventions used in this manual are listed below:
GUI Conventions
For Software
Convention Description
Bold font Used to identify software interface names e.g. OK, Confirm, Cancel
>Multi-level menus are separated by these brackets. For example, File > Create >
Folder.
For Device
Convention Description
< > Button or key names for devices. For example, press <OK>
[ ]
Window names, menu items, data table, and field names are inside square
brackets. For example, pop up the [New User] window
/Multi-
level menus are separated by forwarding slashes. For example,
[File/Create/Folder].
Symbols
Convention Description
This implies about the notice or pays attention to, in the manual
The general information which helps in performing the operations faster
The information which is significant
Care taken to avoid danger or mistakes
The statement or event that warns of something or that serves as a cautionary
example.

G4L User Manual
Page | 5 Copyright©2020 ZKTECO CO., LTD. All rights reserved.
Table of Contents
1 SAFETY MEASURES .................................................................................................................................. 8
2 OVERVIEW ................................................................................................................................................ 9
3 INSTRUCTION FOR USE............................................................................................................................ 9
3.1 FINGER PLACEMENT ........................................................................................................................................ 9
3.2 STANDING POSITION,FACIAL EXPRESSION AND STANDING POSTURE ............................................................. 11
3.3 FACE REGISTRATION ...................................................................................................................................... 12
3.4 STANDBY INTERFACE ..................................................................................................................................... 13
3.5 VIRTUAL KEYBOARD ...................................................................................................................................... 15
3.6 VERIFICATION MODE ..................................................................................................................................... 16
3.6.1 FINGERPRINT VERIFICATION ....................................................................................................................................16
3.6.2 PASSWORD VERIFICATION .......................................................................................................................................19
3.6.3 FACIAL VERIFICATION...............................................................................................................................................21
3.6.4 COMBINED VERIFICATION........................................................................................................................................23
4 MAIN MENU ............................................................................................................................................ 25
5 USER MANAGEMENT.............................................................................................................................. 26
5.1 USER REGISTRATION...................................................................................................................................... 26
5.1.1 USER ID AND NAME................................................................................................................................................26
5.1.2 USER ROLE ...............................................................................................................................................................27
5.1.3 FINGERPRINT ............................................................................................................................................................28
5.1.4 FACE..........................................................................................................................................................................29
5.1.5 BADGE NUMBER ......................................................................................................................................................29
5.1.6 PASSWORD ...............................................................................................................................................................30
5.1.7 USER PHOTO ............................................................................................................................................................31
5.1.8 ACCESS CONTROL ROLE..........................................................................................................................................31
5.2 SEARCH FOR USERS....................................................................................................................................... 34
5.3 EDIT USER .................................................................................................................................................... 35
5.4 DELETE USER ................................................................................................................................................ 35
6 USER ROLE .............................................................................................................................................. 36
7 COMMUNICATION SETTINGS................................................................................................................. 38
7.1 NETWORK SETTINGS ..................................................................................................................................... 38
7.2 SERIAL COMM............................................................................................................................................... 39
7.3 PC CONNECTION........................................................................................................................................... 40
7.4 WIRELESS NETWORK ..................................................................................................................................... 41

G4L User Manual
Page | 6 Copyright©2020 ZKTECO CO., LTD. All rights reserved.
7.5 CLOUD SERVER SETTING ............................................................................................................................... 43
7.6 WIEGAND SETUP........................................................................................................................................... 43
7.6.1 WIEGAND INPUT ......................................................................................................................................................44
7.6.2 WIEGAND OUTPUT...................................................................................................................................................45
8 SYSTEM SETTINGS.................................................................................................................................. 47
8.1 DATE AND TIME............................................................................................................................................. 47
8.2 ATTENDANCE/ACCESS LOGS SETTING ............................................................................................................ 48
8.3 FACE PARAMETERS ........................................................................................................................................ 50
8.4 FINGERPRINT PARAMETERS............................................................................................................................ 52
8.5 FACTORY RESET ............................................................................................................................................ 54
8.6 USB UPGRADE ............................................................................................................................................. 54
9 PERSONALIZE SETTINGS........................................................................................................................ 55
9.1 INTERFACE SETTINGS..................................................................................................................................... 55
9.2 VOICE SETTINGS............................................................................................................................................ 56
9.3 BELL SCHEDULES .......................................................................................................................................... 57
9.4 PUNCH STATE OPTIONS................................................................................................................................. 58
9.6 SHORTCUT KEY MAPPINGS............................................................................................................................ 59
10 DATA MANAGEMENT ........................................................................................................................... 62
10.1 DELETE DATA .............................................................................................................................................. 62
11 ACCESS CONTROL ................................................................................................................................ 64
11.1 ACCESS CONTROL OPTIONS ........................................................................................................................ 64
11.2 TIME SCHEDULE.......................................................................................................................................... 66
11.3 HOLIDAY SETTINGS ..................................................................................................................................... 68
11.4 ACCESS GROUPS......................................................................................................................................... 69
11.5 COMBINED VERIFICATION SETTINGS ............................................................................................................ 70
11.6 DURESS OPTIONS SETTINGS........................................................................................................................ 72
12 USB MANAGER ..................................................................................................................................... 73
12.1 DOWNLOAD ............................................................................................................................................... 73
12.2 UPLOAD ..................................................................................................................................................... 74
12.3 DOWNLOAD OPTIONS................................................................................................................................. 75
13 ATTENDANCE SEARCH ......................................................................................................................... 76
14 SHORT MESSAGE.................................................................................................................................. 78
14.1 ADD A NEW SHORT MESSAGE ..................................................................................................................... 78
14.2 MESSAGE OPTIONS..................................................................................................................................... 81

G4L User Manual
Page | 7 Copyright©2020 ZKTECO CO., LTD. All rights reserved.
14.3 VIEW THE PUBLIC MESSAGES AND PERSONAL MESSAGE............................................................................... 82
15 WORK CODE.......................................................................................................................................... 83
15.1 ADD A WORK CODE .................................................................................................................................... 83
15.2 ALL WORK CODES LIST ............................................................................................................................... 85
15.3 WORK CODE OPTIONS................................................................................................................................ 85
16 AUTOTEST ............................................................................................................................................. 86
17 SYSTEM INFORMATION........................................................................................................................ 87
APPENDIX 1 STATEMENT ON THE RIGHT TO PRIVACY............................................................................... 88
APPENDIX 2 ECO-FRIENDLY OPERATION................................................................................................... 89

G4L User Manual
Page | 8 Copyright©2020 ZKTECO CO., LTD. All rights reserved.
1Safety Measures
The following precautions are to keep the user’s safety and prevent any damage. Please read
carefully before installation.
1. Read, follow, and retain instructions - All safety and operational instructions must be properly
read and followed before bringing the device into service.
2. Do not ignore warnings - Adhere to all warnings on the unit and in the operating instructions.
3. Accessories - Use only manufacturer-recommended or product-sold accessories. Accessories not
recommended by the manufacturer must not be used.
4. Precautions for the installation – Do not place this device on an unstable stand or frame. It may
fall and cause serious injury to persons and damage to the device.
5. Service - Do not try to service this unit yourself. Opening or removing covers may expose you to
hazardous voltages or other hazards.
6. Damage requiring service - Disconnect the system from the main AC or DC power source and
refer service personnel under the following conditions:
•When cord or connection control is affected.
•When the liquid was spilled, or an item dropped into the system.
•If exposed to water and/or inclement weather (rain, snow, and more).
•If the system is not operating normally under operating instructions.
Just change controls defined in operating instructions. Improper adjustment of other controls may
result in damage and involve a qualified technician to return the device to normal operation.
7. Replacement parts - When replacement parts are needed, service technicians must only use
replacement parts provided by the supplier. Unauthorized substitutes can result in a burn, shock,
or other hazards.
8. Safety check - On completion of service or repair work on the unit, ask the service technician to
perform safety checks to ensure proper operation of the unit.
9. Power sources - Operate the system only from the label's power source form. If the sort of power
supply to use is unclear, call your dealer.
10. Lightning - External lightning conductors can be installed to protect against electrical storms. It
stops power-ups destroying the system.
The devices should be installed in areas with limited access.

G4L User Manual
Page | 9 Copyright©2020 ZKTECO CO., LTD. All rights reserved.
2Overview
Our G4L Device facilitates users to access the cloud features, which includes data collection, storage, and
analysis. This benefits the organization to store the Bio template information on the cloud server, and the
data can be retrieved whenever required. This product of ours provides end to end solutions, and the
cloud technology benefits to maintain updates and monitor the data on the cloud in real-time.
This product can be used for both Access Control and Attendance System, which is cloud-based. Our goal
is to make a unique platform, with hardware and software services at a very low cost, and at the same time,
support development by providing access via different platforms like mobile and web.
Scope
•Sync with Bio Cloud Software
•Easy Access
•Easy Integration
•Multi-Level Data Encryption and Protection
•Quick Deployment and Setup
3Instruction for Use
Before getting into the Device features and its functions, it is recommended to be familiar to the below
fundamentals.
3.1 Finger Placement
•Recommended fingers are index, middle, or ring fingers.
•Avoid using the thumb or pinky, as they are difficult to accurately press onto the fingerprint reader.
Correct and Incorrect Finger Placement
Recommended
•Place the finger on the Scanning Area and press it onto the Fingerprint Reader.
•Ensure that the center of your finger is aligned with the center of the Fingerprint Reader.

G4L User Manual
Page | 10 Copyright©2020 ZKTECO CO., LTD. All rights reserved.
Diagrammatic Representation
Proper finger placement on the Fingerprint Reader
Not Recommended
•Incorrect ways of pressing the finger on the Fingerprint Reader.
Finger Placement Description
Not recommended to place the
finger away from the center of
the Scanning Area.
Not recommended to place the
finger on the side ways.
Not recommended to place the
finger in a corner of the
Scanning Area.
Not recommended to place the
finger in an uplifted position.

G4L User Manual
Page | 11 Copyright©2020 ZKTECO CO., LTD. All rights reserved.
Note:
•It is recommended to use the proper finger placement during Enrollment and Verification
process.
•Our company will assume no liability for recognition issues that may result from incorrect
usage of the product. We reserve the right of final interpretation and modification concerning
this point.
3.2 Standing Position, Facial Expression and Standing Posture
Recommended Distance
The distance between the device and the user (whose height is within 1.55m to
1.85m) is recommended to be 1.5m. Users may slightly move forward and backward
to improve the quality of the captured facial images.
Recommended Facial expression

G4L User Manual
Page | 12 Copyright©2020 ZKTECO CO., LTD. All rights reserved.
Recommended Standing postures
Note: During enrollment and verification, it is recommended to maintain natural facial expression and
standing posture.
3.3 Face Registration
During registration, it is recommended to face the camera and stay still to the center of the device screen
as shown below.

G4L User Manual
Page | 13 Copyright©2020 ZKTECO CO., LTD. All rights reserved.
3.4 Standby Interface
After connecting the power supply, the Device displays the following standby interface.
Notes:
•
Tap on button to go to the User ID input interface.
•
If the Super Administrator access is not set in the Device, tap on button to go to the menu.
•
If the Super Administrator is set in the Device, then it requires the Super Administrator’s verification to
go to the menu functions.
•
For the security of the Device, it is recommended to register Super Administrator access for the first
time you use the Device.

G4L User Manual
Page | 14 Copyright©2020 ZKTECO CO., LTD. All rights reserved.
•
The Device punch state can be set directly by using the screen shortcut keys.
•
Tap anywhere on the screen (without tapping on the icons), to view the six punch state options as
shown on the right image.
•
Press the corresponding shortcut key to select the current punch state, which is shown in green.
Please refer to "7.5 Shortcut Key Mappings" below for the specific operation method.

G4L User Manual
Page | 15 Copyright©2020 ZKTECO CO., LTD. All rights reserved.
3.5 Virtual Keyboard
Note:
This device supports Chinese, English, numbers, and symbols.
•Tap [EN] to switch to the English keyboard;
•Tap [123] to switch to the numbers and symbols keyboard;
•Tap [ABC] to return to the alphabet keyboard.
•Tap on the input box for virtual keyboard.
•Tap [ESC] to exit the input.

G4L User Manual
Page | 16 Copyright©2020 ZKTECO CO., LTD. All rights reserved.
3.6 Verification Mode
The Biometric matching process can be categorized as, One-to-many or “Identification” (1:N), and
one-to-one or “Verification” (1:1). Below is a description of each matching type and how its features are
described.
1:N Identification Process
A one-to-many (1:N) biometric identification process instantly compares the person’s captured biometric
template against ALL stored biometric templates in the system.
1:1 Verification Process
1:1 biometric verification process authenticates a person’s identity by comparing the captured biometric
template with a biometric template of that person pre-stored in the database.
3.6.1 Fingerprint Verification
1: N fingerprint Identification Process
•This method compares the fingerprint that is being pressed and scanned onto the fingerprint
reader with all of the fingerprint data that is stored in the device.
•Once the user presses his/her finger on the fingerprint scanner the device will go to the fingerprint
authentication mode. It is essential to follow the proper way to place the finger on the fingerprint
sensor.
Successful Verification Failed Verification

G4L User Manual
Page | 17 Copyright©2020 ZKTECO CO., LTD. All rights reserved.
1: 1 Fingerprint Verification Process
•This method compares the fingerprint that is being pressed onto the fingerprint reader with the
fingerprints that are linked to the specific User ID input via the virtual keyboard.
•Users may try verifying their identities with 1:1 verification mode when they are not able to access
with 1: N authentication process.
•On the Main screen, tap on button to go to the 1:1 fingerprint verification mode.
•On the screen, enter the user ID and tap OK.

G4L User Manual
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•If the user has registered face and password in addition to the fingerprint, then the verification
method is set to fingerprint/ password/ face verification and the below screen will appear in the
Device.
•Tap on fingerprint icon to go to the fingerprint verification mode and press the fingerprint to
verify.
Successful Verification Failed Verification

G4L User Manual
Page | 19 Copyright©2020 ZKTECO CO., LTD. All rights reserved.
3.6.2 Password Verification
•This method compares the entered password with the registered User ID and password.
•On the Menu screen, tap on button to go to the 1:1 password verification mode.
•On the input screen, enter the user ID and press OK.