ZKTeco SLK20S User manual

User Manual
SLK20S
Date: April 2020
Doc Version: 1.0
English
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 fu r t h e r det a ils, p lea s e v isi t o u r Co m pany ’s we b s ite
www.zkteco.com.

Overview
1.
1
SLK20S is an enhanced version of SLK20M fingerprint module. It supports
large capacity fingerprint acquisition module with an extended feature of
template repository. Its transmission rate is more stable and the fingerprint
comparison is faster than SLK20M.
Integr ating ZK Teco's in dependently de ve loped ideal finge rpr int
recognition algorithm (ZKFinger V10.0), it can instantly recognize the
offline extraction and comparison of fingerprint feature templates on the
module, and also supports fingerprint template comparison on the host.
It provides a complete SDK that facilitates the integration of the module
with the Windows, Android, and Linux systems. It can meet a variety of
adaptation scenarios, such as Time Attendance, Access Control, Self-
Service Terminals, and other identity authentication devices.

Bank Public Security Organs Education Logistics
Medical Traffic Prison Access Control
2
Application Fields
2.
Note: This Fingerprint Acquisition Module can be integrated into POS
machines, Access Control machines, Visitor machines, Attendance
machines, etc.

Features
3.
3
It is compact and thin, and the thickness of the sensor is only 16mm.
It supports encrypted local storage of 8000 fingerprint templates, and
supports offline fingerprint comparison.
It is embedded with a 2-megapixel CMOS, and can provide high quality
fingerprint image.
It is based on the Linux operating system, and is a stable device with
excellent safety performance.
When compared with the uniform storage capacity, its fingerprint
recognition is 4 times faster than SLK20M.
It is FBI PIV, Mobile ID FAP20 and STQC certified.

4 5
USB
D-
USB
D+
PIN 1
+5v GND
23
Shield
67
UART UART
Detail
Specifications and Pin Descriptions
4.
Connector Pin 1
4
Fingerprint Sensor
LED Indicator

Technical Parameters
5.
5
USB 2.0
UART (115200bps/TTL 3.3V)
Interface Molex 51021-0700 (7 pin; 1.25mm)
Connector
Physical
Sensor
Accuracy
Image
S/W
H/W
Certified By
17.2 * 1.4 * 0.6 inch/44 * 36 * 16 mm
Dimension( L * W * H)
0.6 * 0.8 inch/15.24 * 20.32 mm
Capture Dimension ( W * H )
1 Ghz
CPU
<1%
FRR (False Rejection Rate)
<0.0001%
FAR (False Accept Rate)
<1%
Distortion Rate
500 DPI
Image Resolution
300 * 400 pixels
Image Size
<2KB
Template Size
ZKFinger V10.0
8,000 templates (max. 10,000)
110ms (1:1); / 937ms (1:10,000)
Windows 7 or higher;
Android 5.1 or higher;
Linux
Supported Algorithm
Capacity
Matching Speed
Operating Systems
Power Consumption 5V, 130mA (Active) /5V, 70mA (Standby)
0°C ~ 45°C / 32°F ~113°F
Temperature
20 - 90% RH (non-condensing)
Humidity
PIV, STQC, CE, FCC, RoHS
Interface USB2.0
UART (115200bps / TTL 3.3V )
Connector Molex 51021-0700(7-way;1.25mm)

Install the module on the device, as shown below, by tightening the four
screws in the holes and linking the holder to the wire.
Installation on Host (Devices)
6.
6
Note: In order to ensure good and convenient fingerprint scanning, it is
recommended to install the module on the wall horizontally or at an angle
of 0-45 degrees.

Demo Testing Procedure
7.
7
It is required that the first time Users need to install the Device Driver
before using the Fingerprint Scanner, and the process is as follows: (If the
Users have already installed the Device Driver of SLK ID series Fingerprint
Scanner, they can directly test without re-installing it.)
1) Download the Fingerprint Acquisition Module Driver file and then
double-click the setup.exe file to open.

2) On the Setup Wizard, click Next and then click Install to install the driver.
8

3)After the completion of the Driver installation click Finish.
9
4) On the Fingerprint Acquisition Module Driver file, double-click the
demo file.

5)On the demofolder, double-click the Debug file to go to the folder.
10
6) On the Debug folder, double-click the ZKFPModule.exe to go to the
Fingerprint Acquisition Interface. ZKFPModule.exe desktop shortcut can
also be created to instantly open the Fingerprint Acquisition Interface.
Click Connect to connect to SLK20S.

11
7) After connecting to SLK20S, on the UserID field, enter the required User
ID to register fingerprint, and then click Register.
Press the finger for three times on the Sensor area for Registration.
After successful Registration, click Identify, and then press the registered
finger on the Sensor area for verification.

Operating Instructions
8.
12
Guide to Place the Finger
1. Proper Positioning of Finger
2. Improper Positioning of Finger
Note: The finger needs to be pressed flatly over
the Sensor area, and make sure the finger
is placed exactly on the Sensor area.
Not the core of
the fingerprint
Not the core of
the fingerprint
Not the center of
the sensor
Not the center of
the sensor
It is advised to use the index finger, middle finger or the little finger for
Registration.

Some issues may cause difficulties to recognize the Registered fingers or
during new Registration. They are:
1. Smoothed out fingers;
2. Too many wrinkles on fingers;
3. Layer of any material on fingers;
4. Extremely dry and wet fingers.
Make sure the fingers are clean when using the Fingerprint Scanner.
1.
Please avoid using the thumb and pinky fingers, because these two are
clumsy when pressing on the Sensor Area.
4.
Recommended to use the index, middle or little fingers for Registration.
3.
Place the finger correctly.
2.
13
Cautions
Suggestion
Please keep the sensor away from dust.
1.
Please make sure the Sensor area is clean after each use.
4.
Please use a wool-free cloth to wipe the Sensor area.
3.
Please use adhesive tape to clean the Sensor area.
2.
Do not use water or other detergents, which may damage the sensor.
Possible Complications

14
Solutions:
If the user experiences any difficulty during Registration, they can either
delete the fingerprint and re-register or can try using any other fingers.
1.
It is recommended to choose the suitable finger with fewer wrinkles, no
peeling, and clean finger for Registration.
2.
Always try to maximize the Contact Area of the finger.
3.
ZKTeco suggests registering alternative Fingerprints.
4.
Soaked alcohol cotton is used for cleansing if the fingers are dry, and a
clean napkin is used for cleansing if the fingers are wet.
5.

4.
There shall be no illegal arrest, detention, search, or infringement of persons;
1.
Personal dignity as related to personal freedom shall not be infringed upon;
2.
3. A citizen's house may not be infringed upon;
All of our civilian fingerprint recognition devices capture characteristics, not fingerprint images,
and do not involve privacy protection.
1.
4.
3.
2.
Our other police fingerprinting devices or development tools can capture original images of citizens'
fingerprints. As to whether or not this constitutes infringement of your rights, please contact your
government or the final supplier of the device. As the manufacturers of the device, we will assume no
legal liability.
The law includes the following provisions on the personal freedoms of its citizens:
Dear Customers:
We Declare That:
Note:
Thank you for choosing this hybrid biometric recognition product, which was designed and
manufactured by ZKTeco. As a world-renowned provider of core biometric recognition technologies,
we are constantly developing and researching new products, and strive to follow the privacy laws of
each country where our products are sold.
15
Statement on the Right to Privacy
As a final point we would like to further emphasize that biometric recognition is an advanced
technology that will undoubtedly be used in e-commerce, banking, insurance, legal, and other
sectors in the future. Every year the world is subjected to major losses due to simple combination of
passwords. Biometric products serve to protect your identity in high-security environments.
A citizen's right to communication and the confidentiality of that communication is protected
by law.
If you would like to dispute human rights or privacy issues concerning your use of our product,
please directly contact your employer.
As the provider of this device, we will assume no direct or indirect responsibility for any
consequences that may result from your use of this device.
None of the fingerprint characteristics that we capture can be used to reconstruct an image of
the original fingerprint, and do not involve privacy protection.

BLOCK F, Wellness Corporate Park
Melodie, Hartbeespoort, South Africa
Phone : [phone]
E-mail : [email protected]
www.zkteco.co.za
Copyright © 2020 ZKTECO (PTY) LTD. All Rights Reserved.