Warmly welcome to visit our office and factory!

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S4A is a manufacturer for Electromagnetic locks, Access control, UHF RFID reader, biometric access control, etc in Shenzhen, China since 2006,


Your business is a plant, we are the gardener, our mission is to water and fertilize the plant, and make it become the towering tree. S4A is established in 2006, we focus on manufacturer access control products for OEM&ODM and project solution.


With a branch office in Qatar, and sole agent in Singapore, Malaysia, The Democratic Republic of the Congo, South Korea, and Egypt. S4A's products circulate around the world.

We attach great importance to partner's appeal, customer's suggestions, and feedbacks. To strengthen Product quality awareness, client's service awareness. Our clients and S4A are on the same path walking for many years. So 85% of our business comes from cooperated customers.        


S4A's future would be even more brilliant, this is related to all of our staff's working sweat. When you join this team, you will feel an invisible power to drive walk forward. 


Join us, become our overseas partner. we could create brilliance together. 


Full range of products from our company are as below:


1: Network TCP/IP Access Control Panel and RS485 access control board

With Free software to manage users and SDK to integrate with the 3rd party device.

2: Electromagnetic lock for 60KG, 180KG, 280KG, 350KG and 500KG

Offer OEM and ODM service, factory price

3: 433MHz Wireless door lock (for indoor & outdoor use)

For Wooden door, metal door, aluminium door or glass door

4: Fingerprint door lock

Support face/finger/M1 card/Pincode/Key

5: Smart phone access control with APP

Built in Bluetooth, WIFI to unlock the door and manage users

6: Wireless access control

No need wires to connect

7: One door solution-Standalone access control

Support Fingerprint, rfid/pincode with waterproof and non-waterproof are available

Wholesale price and manufacture for OEM and ODM

8: UHF rfid long range reader

1-5M and 5-15M with software and SDK, Optional output: RJ 45, WIFI port.

9: Electric RIM lock or standalone door lock

Single cylinder or double cylinder with SS 304 material

10: Cabinet lock

Available for 12V or built in battery to operate

11: Electric strike lock or Dropbolt lock

12: RFID access reader

EM 125Khz or Mifare 13.56MHz

13: Access power supply 3A 5A with wide voltage 90V -240V

14: Access exit push button

15: RFID cards and accessories

16: Guard tour probe

Warmly welcome to visit our factory & office at anytime!

Video / Company
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Cooperated clients / Cases
  • 2020 06 - 24
    The Dragon Boat Festival, also known as Duanwu Festival, is a traditional Chinese festival held on the fifth day of the fifth month of the Chinese calendar.The focus of most celebrations involves eati...
  • 2020 04 - 01
    The Qingming or Ching Ming festival, also known as Tomb-Sweeping Day in English (sometimes also called Chinese Memorial Day or Ancestors' Day), this is a traditional Chinese festival observed by t...
  • 2020 01 - 10
    We S4A Industrial Co.Limited Lunar New Year holidays will start at 18th, Jan and end at 1th, Feb. From 2th, Feb, 2020, We will resume to work. Your long-term support to our company is highly...
  • 2019 10 - 22
    Access Control Switch Power Supply1. AC Input Voltage: AC100~240V 50Hz/60Hz2. Output Voltage: DC12V3. Momentary Current: 5A4. Persistent Current: 2A
  • 2019 09 - 24
    Holiday Notice: S4A will be closed from 1/Oct.  to 7/Oct.  for the National Day. We will resume to work on 8/Oct. Thanks so much for your attention! Oct.1s...
  • 2019 09 - 06
    Holiday Notice:S4A will be closed from 13/Sept.  to 15/Sept.  for the Mid-Autumn FestivalWe will resume to work on 16/Sept. Thanks so much for your attention!Mid-Autumn F...
  • 2019 08 - 16
    S4A Access Contro board-EMChttp://www.s4a-access.com/products.aspx?TypeId=10&FId=t3:10:3
  • 2019 08 - 16
    Certificate of trademark registration S4A Industrial Co.,Limited
  • 2019 06 - 04
    The Dragon Boat Festival, also known as Duanwu Festival, is a traditional Chinese festival held on the fifth day of the fifth month of the Chinese calendar.The focus of most celebrations involves eati...
  • 2017 12 - 27
    30th,Dec 2017 to 1st,Jan 2018 its our local new year holidays...
  • 2018 01 - 18
    after our 6month effort,new website come online today.we are delicated to do A quality products and A quality ...
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Link / onLine
Sales Hotline: 86 755 2945 0011
Mob: 86 134 1050 0721
E-mail : sales@s4a-access.com
Address : 6th Floor, Haotai Industrial Zone,Minzhi Road,Longhua New District,Shenzhen,PRC. 518131
Copyright ©2017 - 2018  S4A Industrial Co.,Limited   Crypton Electronic Co.,Limited 
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