About Us
30
Years of experience
S4A is a manufacturer for Automatic Door Opener, Electromagnetic locks, Access control, UHF RFID reader etc in Shenzhen, China since 2010,            
  S4A-Security For All.  S4A Industrial Co., Limited, Founded in 2010, We have been dedicating in access control production R&D and sales for 10year till now. With the belief that we do one thing well in a lifetime, our CEO has been in this industry for 15 years. During the past 10 years, our products have been exported to various countries and regions. And 90% of customers come from the recommendations of cooperative customers, and 80% of the turnover comes from cooperative customers in the past 10years.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. We attach great importance to the 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.       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. S4A mainly produces a series of security Door Access Control such as:Network Access Controller, Locker board, Electromagnetic lock, Standalone door Controller, Automatic door opener, etcOur team can manufacture products, sell products, and do after-sales.We can create value for you! 1-We put quality and price in top priorityQuality takes great importance for a company's credibility, and buyer's every penny spend must worth it. That is our most basic principle. Our business mainly for wholesale, so we could offer large quantities at competitive prices. During the past 10 years, We work hard to create value for our customers, and with our help, customers have an increasing market share. 99% of the customers who have cooperated with S4A will choose 2nd,3rd, and endless purchasing. because S4A not only controls the product quality very well, but the price is also very reasonable. As you can see, we have hundreds of products, but We do not produce all products. We adopt a portfolio strategy and invest in each factory. Because of the large export volume and the stable cooperation relationship with the factory, we can better control the quality and price of the products. Cooperate with us, you have no worries. In the past 10 years, more than 80% of our customers' sales have increased turnover by 15-20% every year. 2 -We have experienced and professional sales Our sales are not just sold products, we also help you choose products, do market research. Our company's top sales team all have more than 8 years of experience in the access control market, our team loves learning, loves sharing, good at summarizing, and dare to undertake responsibility. Because all of us regard the access control field as a career we love throughout our lives. At S4A, you can get a quick response and flexible support, and you can see our ability to solve problems. get professional guidance and recommendations, you don't have to worry about after-sales at all. Our task is: All emails must be replied within 2 hours at a working time!3-We have experienced and professional engineer S4A is equipped with 6 technical engineers for after-sales. and every year, We take out 20% of the net profit as research and development for new products, We all know Access control system is a kind of product with technical knowledge. When you have headaches such as unable to connect wires, Software compatibility issues or programming device, please remember S4A's after-sales support at any time. Our task is: All technical issues must be solved within 4 hours at a working time!4-Support OEM & ODM  All of our products accept OEM and ODM orders at a reasonable quantity. we help customers to promote their brand. We all know Access control is an increasingly popular industry. Based on past experience, we have found that customers who have just started to become distributors do not have a large number, but want to promote their own brands. For this kind of customer, we will also have a special application to do OEM for him. Because Support is mutual.5. S4A Vision Our Vision is to let all people in the whole world free their hands for keys, whether it is in poor areas or developed cities able to use access control.
4750
Success case
150
Global Locations
99
%
Customer praise
PRODUCT APPLICATION

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.

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Access Control systems with Pedestrian turnstile gate application
Access Control systems with Pedestrian turnstile gate application

The use of access control systems in life has gradually become widespread, and different types of access equipment are required in a different entrance and exit scenarios. For example, three roller gates and turnstiles in stadiums, pedestrian passages in campuses, enterprises, and high-end intelligent buildings. While they effectively help the staff to reduce work pressure, they also ensure the safety of traffic.   Access control gate system has the following five advantages:   1. Simple and easy to use. Existing access control management personnel only need to go through simple training to be able to operate. The maintenance personnel of the access gate can find the fault in a few simple operations, which can be quickly and conveniently eliminated.  2. Advanced technology. Using the most popular wireless network management system at present, the channel gate ensures that your management system will not lag behind in ten years.   3. Low overall cost. From the perspective of installation, debugging and wiring, the use of TCP/IP transmission can reduce a lot of investment. In addition, the construction period is short, which saves wire and labor costs, and is very easy to maintain. Therefore, the use of access control gate system, More advantages in cost.   4. There are many uses. The channel gate management system uses a non-contact smart IC card, also known as a radio frequency card, which successfully solves the problems of multi-use, confidentiality, wear-free, and easy operation of the IC card greatly improves the practicability of the system and can perform a single card After multiple authorizations, the channel gate can be used for other application management. Such as attendance, consumption, parking management, patrol, personnel.   5. Convenient expansion. The computer and the intelligent management system adopt wireless communication, and the channel gate can expand the number of channels at will. That is, when the corresponding control system is installed, if the number of intelligent access gates and elevator control equipment needs to be increased, the hardware only needs to increase the corresponding access gates, and the software can set the new equipment.Three influencing factors of the access control system:  As an intelligent access control system, its much more complicated than traditional access control unit. Naturally, there are more factors affecting its functions. There are three main aspects in a simple understanding:  1, design styleHigh-end pedestrian passages need to integrate product safety, modern, and concise design concepts with the building environment and architectural style; the line is mainly streamlined, reflecting the concise and comfortable style, and the material is more glass and stainless steel. The stylish and transparent design of the company is consistent with the construction style of intelligent buildings; and the high-end pedestrian walkway products have obvious differences in metal surface processing...

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What's kind of sensor we are using for the Automatic Door opener?
What's kind of sensor we are using for the Automatic Door opener?

What's kind of sensor we are using for the Automatic Door opener? Active Infrared Functional Principles: An Active Infrared Detector always consists of one transmitter and at least two receiver chips with high-quality optical systems. The scanning range is set by means of a mechanical micro-speed unit by changing the angle between the transmitter and receiver. This optical procedure is called triangulation or optical differential measurement. Active Infrared Detectors are static—they only detect persons and objects if they break the beam. The detection area consists of spots, and depends to a large extent, on the optical center-to-center distances of the transmitter and receiver lenses. Several beams can be combined in a modular system to form a larger area. Choose from: Background suppression presence detectors are used on moving parts like a swing door or revolving door. This system does not require a background like a wall or floor. Background analysis requires a signal from the background in order to switch the output. The sensor is installed and requires a background (floor/wall). The output is deactivated.The desired scanning range is set mechanically within the predefined possible distances.Each object within the set scanning range is detected statically.Passive Infrared Functional Principles: Passive Infrared Sensors function in a similar way to infrared cameras used to detect heat loss from buildings. The infrared-sensitive sensor forms a heat image of the defined area to be monitored. After an initial set-up time of approximately 20 seconds, the measured infrared image is saved. The sensor switches if the heat image changes as a result of movement. Two conditions must be fulfilled here: 1. There must be a temperature difference of +/- 1.8 F between the object to be detected and the background.2. The object to be detected must move at a rate of at least 4 inches per second. The system is ideal for detecting people only if— there is always a difference of at least 1.8 F between the surface temperature of a clothed person and the surrounding environment. For reasons of a physical nature, this technology should only be used to detect living beings as it’s not always possible to guarantee that the difference in temperature between items such as shopping carts or vehicles, and that of the surrounding environment will be great enough. Microwave sensor ( we have 2 models are available to choose, M204 and M204-T)So, we need to know first what is a Microwave Motion Sensor?A microwave motion sensor uses electromagnetic radiation. It emits waves that are then reflected back to the receiver. The receiver analyzes the waves that are bounced back. If there is an object moving in the room, these waves are going to be altered. The microwave detector is able to identify changes from moment to moment. Ideally, the receiver should be receiving the same waves back again and again.Beca...

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Six application areas of Door access control systems
Six application areas of Door access control systems

1: Office Building The installation of access control in the company gate can effectively prevent outside salesmen from entering the company and disrupt, and it can also effectively prevent outsiders from entering the company, ensuring the safety of the company and employees' property. It Can effectively track whether employees leave their posts without authorization. The attendance can be checked through the supporting attendance management software, without the need to buy a clock, the attendance results are more objective and fair, and the statistics are fast and accurate, which can greatly reduce the work intensity and workload of the personnel department. It can effectively solve the problem that some employees have to replace the door key for fear after leaving. You can conveniently and flexibly arrange anyone's authority and opening time for each door. You only need to take a card, without taking a large number of heavy keys, and the security is more reassuring than the keys. 2: Application of access control systems in the Community Generally, access control systems are installed on residential gates, fence gates, electric doors, iron doors, fire doors, and anti-theft doors of units. (you could choose locks for indoor use or outdoor use if, for outdoor, we recommend to take EL-W600 280KG IP65 waterproof version), It can effectively prevent idle people from entering the community, and conduct closed management of the community. It can change the inaccurate and imprecise management method of the community security who rely on memory to determine whether it is an inaccurate and inaccurate management method by outsiders. If it is a community owner, the new security guards will cause disgust from the owner. If outsiders are well dressed, the security guards may think they are the owners and do not interrogate them. This will also bring about safety hazards. A safe and scientific access control system can improve the quality of the property and is more conducive to developers to promote real estate. Owners will also benefit from scientific and effective access management. The networked access control facilitates the security to monitor the entry and exit of all gates at any time. If there is an accident or case, the entry and exit records can be inquired to provide evidence afterward. It can be combined with building intercom system and video intercom system. It can realize the all-in-one card with the internal consumption parking lot management of the community. 3: Application of access control in government offices It can effectively regulate the office order, can prevent illegal personnel from attacking government offices, and protect the personal safety of leaders. 4: Application of access control in the medical hospital system It can prevent outsiders from entering the infected area and precision equipment room. 5: Application of access control in telecom stations and power supply bu...

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Network access control systems for Hotel management
Network access control systems for Hotel management

The hotel management network access control system is developed and designed by S4A in conjunction with the hotel industry. Its working mechanism is a Mifare card reader installed at the door of each room. When a guest checks in, the Receptionist will send the room number, check-in time, and check-out time through the card issuer (PCD-122 or MCI-109). Enter it into the software of the management, and authorized the cards according to the time and date then upload it to the control host. After the guest arrives at the door of the room, swipe the card on the card reader, it will read the ID number of the card and uploads it to the controller for permission confirmation, and then controls the electric lock to open the door, otherwise, the door cannot be opened. At the same time, the controller saves the door opening information. If the main console is in a "real-time" state, it will be transmitted to the computer control center at the main station via TCP communication, and the door opening information will be displayed on the computer in time. Such as a certain guest, certain time, opening a certain room, etc. The inductive IC card access management control system (referred to as the RFID access control system) has multiple functions such as door access control, real-time monitoring, attendance records, and security alarms. All these functions, you might check it via S4A access control software, It is mainly convenient for staff to enter and exit, and to prevent unauthorized staff to enter, which is convenient for management for all users.Author: Written by Mr.Andy Zhang from S4A INDUSTRIAL CO.,LIMITED

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Electromagnetic locks application filed
Electromagnetic locks application filed

Electromagnetic locks are highly reliable, long-lasting units compared to other electric locking devices because there are no moving parts involved in their operation. They are also the staunchest of fail-safe units because there is no mechanism that can cause sticking and binding. The versatility of electromagnetic locks allows them to be used almost anywhere electric strikes and electric bolt locks are used, but with these feature advantages:Most secure deviceThe most fail-safe locks easily adapt to meet Fire Safety requirementsMost Durability – no moving parts, minimally effected by overvoltageMost Minimal maintenanceMosttWell adapted to poorly fitted or poorly hung doors Inner office door by a receptionist behind a window or desk. To release the door, he or she merely has to press a button under the desk, We need to configure the EB-19B button together. Applications as below: • Employees enter a workplace through a common door equipped with a card reader.• Dormitory room and bathroom applications where there can be privacy but someone has the authority to open in an emergency.• A laboratory room where at night the deadbolt can be thrown but in an emergency, the door can be unlocked• Electric lock is fail-safe and when the power of the building is cut, the designated doors are unlocked.• Nursing home rooms offering privacy but in an emergency, the door can be unlocked.Author: Written by S4A-Access from S4A INDUSTRIAL CO.,LIMITED

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Application of RFID technology in the field of fire protection
Application of RFID technology in the field of fire protection

With the rapid development of urbanization in cities, large-scale construction of buildings, a large number of people entering and exiting activities every day, electric vehicles in the community, and the safety of residents' electricity use, fire safety is a very important concern. In a complex social environment, how to improve, innovate, and scientifically manage management models must make full use of various advanced scientific and technological means to enhance the service concept and quality of fire protection work. With the continuous advancement of science and technology, the gradual development of technical and hardware conditions, the rapid expansion of industrial scale, and the vigorous supervision of relevant departments, smart firefighting has emerged. Smart firefighting refers to the use of the Internet of Things, big data and other technical means to organically link firefighting facilities, socialized firefighting supervision and management, firefighting and rescue and other elements through Internet of Things information sensing and communication technologies to achieve real-time, dynamic, interactive, Integrated fire protection information collection, transmission and processing, comprehensively promote and improve the level of fire supervision and management, enhance the command, dispatch, decision-making and disposal capabilities of fire fighting and rescue, improve the intelligent and social level of fire management, and meet the "automation" of fire prevention and control , The actual needs of "intelligence" fire fighting and rescue command, "systematization" of daily law enforcement work, and "refined" military management, realize smart prevention and control, smart operations, smart law enforcement, and smart management, and create a "firewall" from the city to the home . Smart firefighting uses RFID technology to scan tags for daily fire prevention inspections by posting encrypted RFID radio frequency tags and establishing ID cards on key firefighting parts and firefighting facilities of the unit. In addition, the system will automatically prompt the inspection standards and methods of various fire-fighting facilities and key parts, and automatically record the inspection traces of inspectors, replacing the traditional paper inspection records. It has changed the status quo that traditional fire prevention inspections are not in place and inspection records are untrue. The maintenance and inspection of fire-fighting equipment is a major foundation of smart fire-fighting construction.Author: Written by S4A from S4A INDUSTRIAL CO.,LIMITED

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Hot Products

These are the top 4 items in our factory in the past 2month with quality assurance.

Access Control System
Network Four Door Wiegand Access Controller Panel in Access Control System

Four-door Network access control board built-in TCP/IP, Support APP/4G/Web-server with free software.Connect 4pcs RFID access reader and 4pcs exit push button

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Fingerprint Access Controller
Fingerprint Touch-Screen Standalone Access Control

> Card type: EM, HID, MF, CPU Card(Factory default: EM 125KHz)> Metal backlight keypad> User capacity: 10,000 users> Dimensions: 139x70x22mm> Waterproof IP68

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Keypad Access Control
Standalone Keypad Access Control

> Card type: EM, HID, MF, CPU Card(Factory default: EM 125KHz)> Metal backlight keypad> User capacity: 10,000 users> Dimensions: 135x47x23mm> Waterproof IP68

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Electromagnetic Lock
600lbs Electromagnetic Lock Holding Force for Access Control Single Door 12V and 24V

> LED, door sensor and time delay> Holding Force: 280KG (600Lbs)> Voltage: DC12V and DC24V> Lock Size: 250Lx48.5Wx25H(mm)> Current Draw: 12V/500mA 24V/250mA

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RFID Touch Access Control
Metal Outdoor Waterproof Keypad RFID Touch Access Control Reader

> Card type: EM or MF Card> Metal structure design, anti-vandal> Digital backlit keyboard> All-in-one, WG26 output/input> Three-way to open the door, card, password, card + password> The doorbell button and interface: buttons and isolation circuit, connect to any external bell

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Face Recognition Temperature Measurement System
Face Recognition Temperature Measurement System-access Control Infrared Temperature Scanner Thermometer Attendance All-in-one Controller

> Support Access Control & Time Attendance> Built-in Infrared camera> Abnormal temperature Alarm> Detect Distance: 0.3m~0.5m

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QR Code Reader
1D 2D QR Code Reader Programmable Auto Scan Barcode Reader

> ID 125KHz Cards+QR code (Wiegand 26/34output)> IC 13.56MHz Cards+QR code (Wiegand 26/34output)> Built-in TCP/IP and USB port

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Electric Gate Opener
Electric Gate Opener Swing Automatic Door Operator with Interlock Function

S4A Automatic Flat door systems with Pull arm or Push arm, support 110V  or 220V with a brushed motor> Power supply: 110V or 220V> Opening time: 3~7s / 90°> Opening and holding time: 1-30s> Protection level: IP12D

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latest news

New Release-Rfid Standalone Access Control with Remote Control to program users
May 22, 2021
New Release-Rfid Standalone Access Control with Remote Control to program users

New Release in May 2021Rfid Standalone Access Control with Remote Control to program users1: It supports EM/Mifare cards2: Voltage: DC12~24V3: Wiegand 26/34 Input and Output,it can support Card reader IN and OUTor Connect with ACB network access control board with softwareIf you want to know detailed information, such as connection diagrams. Instructions, please feel free to call or email us right now.Tel: +86 0755 29450011Email: sales@s4a-access.com

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  • The Lastest Wave To Open-Touchless Sensor released in Mar-2021
    April 01, 2021
    The Lastest Wave To Open-Touchless Sensor released in Mar-2021

    This is the latest released touchless sensor, inductive switch button from S4A in March 2021If you need more detailed information, please feel free to contact our sales department.thanks

  • Rapidly rising raw material prices and shortages set the trend in 2021
    March 05, 2021
    Rapidly rising raw material prices and shortages set the trend in 2021

    Stainless steel market on an upward trendThe market, especially for steel and stainless steel, is currently continuing its upward trend. Supply problems are being reported from the European, North American, and in some cases also South and Central American steel markets.Steel prices have increased significantlyPrices for steel and stainless steel have increased significantly. Some are even talking of a doubling. Delivery times for European steel producers are already six months or more. – so at least in August.Market safeguard measures pose problems for the processing industryWhat is currently bringing the review of the Safeguard measures by the EU Commission and the political events surrounding it into focus in the steel world. There are now strong calls from the processing industry for an end to Safeguard.United States with all-time highs for steelSteel prices in the United States are also reaching new all-time highs and availability is more than limited. The economy in the United States has rebounded and market sources told us that things are currently going crazy there and there is hardly any material to be had.South America also feels the rising prices,In South America, the consuming industry complains of the same suffering. Severe shortages. New material is not yet in sight. And prices are rising sharply. In between, one hears voices from time to time that want to talk down the problem. But at the moment, domestic steel producers are completely overwhelmed and cannot keep up with demand.What about stainless steel imports from Asia?“Imports from Asia would currently be an alternative for many companies. But here, too, it is currently a question of readiness to make decisions and speed. And the right knowledge about where to get material and how to import it properly.The supply chain has not yet returned to normalThe supply chain to and from Asia has not yet fully recovered. There are still not enough containers available where they are needed. The shortage of ships and containers is also reflected in the price. Ocean freight rates have increased eightfold in some cases (European mills significantly increase alloy surchargesAlloy surcharges are up significantly again for March 2021. Looking at Outokumpu’s alloy surcharges for 304 from November 2020 versus March 2021, they have increased by almost 28% (about 54 US cents). From February 2021 to March 2021 by 14 US cents alone.Nickel temporarily at a record level above $20,000/mtOn February 22, 2021, nickel briefly jumped above $20,000 per ton on the London Metal Exchange, Shortly thereafter, it consolidated again and has since held steady between $18.000 and $19,000. Overall, the commodity market seems to be reorganizing. However, we currently see a trend further upwards.Ferro Chrome: Concerns about availability in ChinaThe major Chinese stainless steel producers have very recently increased March prices for high-carbon ferro-chrome tender, After Ulanqab, a major ferroalloy production hub in Mo...

  • Access control system market will reach 12.1 billion US dollars in the next 5 years
    February 27, 2021
    Access control system market will reach 12.1 billion US dollars in the next 5 years

    According to data from a research report on the access control market by Marketsandmarkets, the access control industry is expected to grow from USD 7.5 billion in 2018 to USD 12.1 billion in 2024, with a compound annual growth rate of 8.24%. The main driving factors for the growth of the access control market are the increase in the global crime rate and the increase in user adoption of access control solutions; the second is the deployment of wireless technologies in security systems and the deployment of security systems based on IoT security systems and cloud computing platforms Universal application.The report pointed out that access control system as a service (ACaaS) applications, based on the widespread use of mobile access control, coupled with the gradual increase in urbanization in emerging countries, combined these factors to provide access control vendors with a broad market. Among them, biometric card readers are expected to grow at the highest compound annual growth rate in the next five years (2019-2014), including fingerprint recognition, iris recognition, and face recognition. Due to the increasing demand for security from government facilities, factories, power stations, defense agencies, and enterprises, biometric card reader have the best development period.Researchers predict that in the vertical market, the RFID access control market for family residences will have the highest compound annual growth rate in the next five years. In the smart home system, the access control system is mainly used to improve security. The key factors that promote the growth of this market are the rising global crime rate and the continuous advancement of technology. The current user demand for fire and gas leak detection is increasing. To ensure the safety of children and the elderly at home. At the same time, the growing guide home market is also promoting the upgrade of access control solutions from another dimension.Increasing security issues will drive users' demand for door access control systems in the Asia-Pacific region, so this region is also regarded as the region with the highest compound annual growth rate in the future. Factors such as industrialization, commercialization, and increasing demand for security systems have become key factors in the development of the market. In addition, compared with other regional markets, the rising crime rate and the inconsistency of police deployment have also caused users to have more access control systems. demand.Author:Written by Ms.Anna Zhang from S4A INDUSTRIAL CO.,LIMITED

Contact Us
  S4A-Security For All.  S4A Industrial Co., Limited, Founded in 2010, We have been dedicating in access control production R&D and sales for 10year till now. With the belief that we do one thing well in a lifetime, our CEO has been in this industry for 15 years. During the past 10 years, our products have been exported to various countries and regions. And 90% of customers come from the recommendations of cooperative customers, and 80% of the turnover comes from cooperative customers in the past 10years.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. We attach great importance to the 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.       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. S4A mainly produces a series of security Door Access Control such as:Network Access Controller, Locker board, Electromagnetic lock, Standalone door Controller, Automatic door opener, etcOur team can manufacture products, sell products, and do after-sales.We can create value for you! 1-We put quality and price in top priorityQuality takes great importance for a company's credibility, and buyer's every penny spend must worth it. That is our most basic principle. Our business mainly for wholesale, so we could offer large quantities at competitive prices. During the past 10 years, We work hard to create value for our customers, and with our help, customers have an increasing market share. 99% of the customers who have cooperated with S4A will choose 2nd,3rd, and endless purchasing. because S4A not only controls the product quality very well, but the price is also very reasonable. As you can see, we have hundreds of products, but We do not produce all products. We adopt a portfolio strategy and invest in each factory. Because of the large export volume and the stable cooperation relationship with the factory, we can better control the quality and price of the products. Cooperate with us, you have no worries. In the past 10 years, more than 80% of our customers' sales have increased turnover by 15-20% every year. 2 -We have experienced and professional sales Our sales are not just sold products, we also help you choose products, do market research. Our company's top sales team all have more than 8 years of experience in the access control market, our team loves learning, loves sharing, good at summarizing, and dare to undertake responsibility. Because all of us regard the access control field as a career we love throughout our lives. At S4A, you can get a quick response and flexible support, and you can see our ability to solve problems. get professional guidance and recommendations, you don't have to worry about after-sales at all. Our task is: All emails must be replied within 2 hours at a working time!3-We have experienced and professional engineer S4A is equipped with 6 technical engineers for after-sales. and every year, We take out 20% of the net profit as research and development for new products, We all know Access control system is a kind of product with technical knowledge. When you have headaches such as unable to connect wires, Software compatibility issues or programming device, please remember S4A's after-sales support at any time. Our task is: All technical issues must be solved within 4 hours at a working time!4-Support OEM & ODM  All of our products accept OEM and ODM orders at a reasonable quantity. we help customers to promote their brand. We all know Access control is an increasingly popular industry. Based on past experience, we have found that customers who have just started to become distributors do not have a large number, but want to promote their own brands. For this kind of customer, we will also have a special application to do OEM for him. Because Support is mutual.5. S4A Vision Our Vision is to let all people in the whole world free their hands for keys, whether it is in poor areas or developed cities able to use access control.<
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