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  • How To Choose An Access Control System?
    How To Choose An Access Control System? Sep 28 , 2022
    How to choose an access control system?The access control controller is the core of the access control system. It uses the combination of modern computer technology and various identification technologies to reflect an intelligent management method. The number of doors controlled by each controller can be divided into single-door controllers, double-door controllers, four-door controllers,s and mu...
  • Application of Access Control System in Olympic Games
    Application of Access Control System in Olympic Games Oct 02 , 2022
    Application of Access Control System in Olympic Games   (sales@s4a-access.com)Olympic events are mainly divided into two types, one is the building used for office or rest during the Olympic Games; the other is the venues for holding various events during the Olympic Games. This article mainly describes the application of the access control system in the Olympic venues for reference.S4A-...
  • Advantages and disadvantages of access control system magnetic lock
    Advantages and disadvantages of access control system magnetic lock Oct 17 , 2022
    Magnetic lock, also known as electromagnetic lock, is an electric lock that relies on the suction force generated between an electromagnet and an iron block to close the door.Some magnetic locks have the output of door status (door magnetic status). If you look carefully at the terminals, in addition to the power terminals, there are also three terminals: COM NO NC. The function of these terminals...
  • Automatic door opener purchase and use instructions
    Automatic door opener purchase and use instructions Oct 20 , 2022
    Automatic door opener purchase instructions:1. Look at the horsepower of the automatic door opener motor. That is, what is usually asked is, how many doors or how many doors can this door open? We are accustomed to simply think that the bigger the shape of the door opener, the more powerful it is, which is unscientific. In fact, the power of the motor is determined by the rotor parameters (diamete...
  • Access control door button selection skills and suggestions
    Access control door button selection skills and suggestions Oct 21 , 2022
    Access control system button selection skills and suggestions.There are two common ways to enter and exit the door:1. Swipe your card to enter, and swipe your card when you go out. We usually call it "two-way access control" or "two-way card reading". The advantage of this method is that it has a higher level of security. Generally, people are not allowed to leave casually...
  • How To Choose Automatic Door Closers?
    How To Choose Automatic Door Closers? Oct 28 , 2022
    Door closers are mainly used in commercial and public buildings, especially the access control system. They have many uses, chief among them being to allow doors to close on their own to limit the spread of fire and to ventilate the building.What issues should be considered when choosing a door closer?Before choosing a door closer, you should consider door weight, door width, door opening fre...
  • Five Installation Methods Of Door Closers
    Five Installation Methods Of Door Closers Oct 28 , 2022
    The door closer is installed on the door. Its function is to automatically close the door when the door is opened. Its characteristic is that it can accurately close the door to the initial position. Door closers are widely used in our lives. It is mainly used in commercial and public buildings, but also in domestic use. Its biggest function is to close the door tightly when a fire occurs, th...
    Tags : Door Closer
  • What is an electromagnetic door suction? How does it work and how to install it?
    What is an electromagnetic door suction? How does it work and how to install it? Oct 31 , 2022
    Electromagnetic door suction, this kind of door suction is often used with fire doors, also known as electromagnetic door suction for normally open fire doors.1. What is electromagnetic door suction2. The working principle of electromagnetic door suction3. Electromagnetic door suction classification4. Installation method of electromagnetic door suction1. What is electromagnetic door suctionElectro...
  • What is the difference between a door closer and a floor spring?
    What is the difference between a door closer and a floor spring? Nov 03 , 2022
    Door control hardware is a very important supporting product device in people's daily life. It mainly includes: floor springs and door closers, usually used in shopping malls, office buildings, residential areas, hotels and other public places. The main function is to ensure that the door can be opened normally, or the door can be closed to the initial position accurately and timely. Normally,...
  • Why Do You Need A Safety Relay Module?
    Why Do You Need A Safety Relay Module? Nov 04 , 2022
    Why do you need a safety relay module?There are many types of intelligent Relay modules. With the rapid development of science and technology, the application fields of intelligent relay modules will become wider and wider, such as mechanical control in industry 、automatic door openers, lighting control switches in civil use, and other automatic system control occasions.Usually, the wiring mode of...
  • Types of electric mortise locks
    Types of electric mortise locks Nov 07 , 2022
    Electric mortise locks are divided into: two-wire electric mortise locks, five-wire electric mortise locksTwo-wire electric mortise lock: There are two wires, red and black, red is connected to power +12VDC and black is connected to GND. Disconnect either wire, the lock retracts, and the door opens. The two-wire electric lock is relatively simple in design and has no single-chip control circuit. T...
  • Learn about electric RIM locks
    Learn about electric RIM locks Nov 17 , 2022
    Electric RIM lock is a kind of electric lock with a large amount of use. It can be opened electronically or with a key. It is mostly used in building intercom doors (also called electric doors) in residential areas. It is the veteran of electric locks. For a period of time, it represented the electric lock, and now people often use the electric lock as a general term for all electric locks. Howeve...
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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.In the realm of access control, one company stands out for its unwavering commitment to providing security services for everyone. S4A, which stands for "Security for All," has been at the forefront of access control technology for the past 13 years. With its own state-of-the-art factory and a strong focus on research and development, S4A has continuously delivered cutting-edge access control machines with the latest functions. Their dedication to product quality, customer feedback, practicability, and cost performance sets them apart as a leader in the industry.Factory and R&D Expertise:S4A takes pride in its fully-equipped factory, where skilled engineers and technicians work tirelessly to develop and manufacture access control solutions that meet the highest standards. The company's investment in research and development has resulted in a steady stream of innovative products that cater to evolving security needs.By staying ahead of the curve, S4A ensures that their customers have access to the latest advancements in access control technology.Quality Assurance and Customer Feedback:At S4A, product quality is of paramount importance. The company adheres to rigorous quality control procedures throughout the manufacturing process to guarantee the reliability and durability of their access control machines. Each product undergoes comprehensive testing to ensure it meets industry standards and exceeds customer expectations. S4A also places great value on customer feedback, actively seeking input to continuously improve their products and services. By listening to their customers, S4A maintains a customer-centric approach and delivers solutions that address real-world security challenges.Practicability and Cost Performance:S4A understands that access control solutions must not only be technologically advanced but also practical and cost-effective. The company's emphasis on practicability means that their products are designed to be user-friendly, easily integrated into existing systems, and adaptable to various environments. S4A's access control machines are known for their intuitive interfaces, simple installation processes, and seamless compatibility with other security systems. Additionally, S4A strives to provide cost-effective solutions without compromising on quality. Their competitive pricing ensures that security is accessible to businesses and individuals of all sizes.With 13 years of industry experience, S4A has cemented its position as a leading provider of access control solutions. Through their dedication to "Security for All," the company has set a benchmark for excellence in product quality, customer satisfaction,practicability, and cost performance. S4A's in-house factory and research and development capabilities enable them to stay at the forefront of technological advancements in the field of access control. As the company continues to evolve and innovate, S4A remains committed to empowering individuals and organizations with the highest level of security, ensuring that everyone can enjoy the peace of mind that comes with a reliable and efficient access control system.We can create value for you!Quality 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 customer...<
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    Factory Address:Building S4A, South Third Lane, Qiuyuling Street, Zhangkeng Village, Hengli Town, Dongguan City, Guangdong Province Office Address:#601,floor 6 ,building 1,JINFANGHUA industrial zone, Bantian St. Longgang Dist. Shenzhen, PRC.

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If you are interested in our products and want to know more details,please leave a message here,we will reply you as soon as we can.

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