FAQ
Smart phone access control

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  • Q: 1)What is mobile access control?

  • A:

    Mobile access control enables mobile devices — such as smartphones and wearables — to function as credentials in providing access to secured buildings, rooms, and areas. ... It also provides a more cost-effective and simpler way for companies to manage identification credentials.

  • Q: 2)What is an advanced mobile access control?

  • A:

    Mobile access control presupposes that mobile phones, smartphones, tablets, and wearable electronic devices function as users' credentials when they enter offices or other business facilities. ... Electronic devices enable biometric authentication without the need to invest in expensive biometric readers.

  • Q: 3) What does access control do?

  • A:

    Access control is a fundamental component of data security that dictates who's allowed to access and use company information and resources. Through authentication and authorization, access control policies make sure users are who they say they are and that they have appropriate access to company data.

  • Q: 4) Which best describes access controls?

  • A:

    Which best describes access controls? Access controls help protect against threats and vulnerabilities by reducing exposure to unauthorized activities and providing access to information and systems to only those who have been approved.

  • Q: 5) How do access cards work?

  • A:

    Swipe cards or magnetic stripe cards work by storing data in a magnetic layer placed on a card. This magnetic layer is capable of data storage by altering the tiny magnetic particles—in case you wondered how your credit card works.

  • Q: 6) ​What is access list and types?

  • A:

    There are two main different types of Access-list namely: Standard Access-list – These are the Access-list which are made using the source IP address only. These ACLs permit or deny the entire protocol suite. ... Extended Access-list – These are the ACL that uses both source and destination IP addresses.

  • Q: 7) How does a door entry system work?

  • A:

    A door entry system is a critical component of your business premises security infrastructure. It serves as a doorbell and intercom to give you control over who enters the site, and at the same time, it acts as a security system for controlling staff access throughout the building.

  • Q: 8) When the access control system was first installed, everything was normal. After a period of use, the card reader suddenly cannot read the card. Why?

  • A:

    Without authorization, permissions are deleted, and the card is damaged!

  • Q: 9) What is RFID access control system?

  • A:

    RFID is commonly used in Access Control, using radio-frequency electromagnetic fields to allow the transfer data to identify people of objects without making physical contact.

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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.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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