FAQ
Smart phone access control

New Products

  • Q: 10) What types of cards can be read by our card reader?

  • A:

    The cards that the card reader can read are: ID, IC, HID, UHF, dual-frequency cards

  • Q: 11) The access control card reader suddenly fails to read the card

  • A:

    If the access control card reader has been working normally and suddenly fails to read the card at a certain moment, the reason may be a power failure, damage to the card reader, or strong magnetic interference. When checking the card reader, you can investigate these reasons one by one. If the above problems are eliminated, the card still cannot be read, or static electricity may be generated after using it for a long time, and this static electricity will cause excessive electricity and cause the access control card reader to not work properly.

  • Q: 12) The card reading speed becomes slower and the sensing distance becomes shorter

  • A:

    In this case, it may be that the access control card reader is installed on the metal because the metal has a shielding function, part of the radio waves emitted by the card reader is shielded by the metal, and the induction slows down. In addition, if the card reader is installed in and out, the above problems will also occur if the distance between the two card readers is too close, and the interference of radio waves will cause slow card reading and short sensing distance.

  • Q: 13) The access control card reader cannot communicate with the software

  • A:

    Damage to the communication converter, a short circuit in the line, and damage to the communication module of the card reader will cause the access control card reader and the software to fail to communicate. If the communication converter is damaged, the possible cause is the quality of the converter or strong static electricity on the communication line. If it is caused by a short circuit, it means that the line is damaged and needs further investigation. If the communication module of the card reader is damaged, it may be due to high power or static electricity on the line.

  • Q: 14) What is the function of the access control card reader?

  • A:

    The card reader is an important part of the access control system and the key device for the signal input of the access control system. If the access control system is compared to a person, the card reader is like a human eye. It is related to the stability of the entire access control system. If an access control system controller and electric lock are both good, if the quality of the card reader is defective, it will also cause the door not to be opened, which will affect the acceptance and use of the project.

  • Q: 15) What type of card readers are our card readers?

  • A:

    ID、IC、HID、ID+IC、UHF (WG26 WG34 USB network serial port)

  • Q: 16) Why can't the card reader read the card?

  • A:

    Card reader problem, card type is not supported, no authorization.

  • Q: 17) Why can't a card be read suddenly in the card reader?

  • A:

    No authorization, permission is deleted, the card is damaged.

  • Q: 18) Why can't the card reader and software connect to communicate?

  • A:

    It depends on what kind of card reader, the ones with the software are generally UHF card readers and card issuers.

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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...<
  • Address

    Factory Address:Building S4A, South Third Lane, Qiuyuling Street, Zhangkeng Village, Hengli Town, Dongguan City, Guangdong Province Office Address:2nd Floor of Jinmin'an Industrial Zone, #529, Bulong Rd. Bantian St. Longgang Dist. Shenzhen, PRC.

  • Call us

    0086 755 29450011

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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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