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  • What are the benefits of using QR codes for access control systems?
    What are the benefits of using QR codes for access control systems? Mar 27 , 2023
    QR codes, or Quick Response codes, have become increasingly popular in recent years, and their benefits include:Ease of Use: QR codes are easy to use and can be scanned with a smartphone camera. There is no need to type in a web address or phone number manually.Time-Saving: QR codes can save time by quickly directing people to relevant information or actions.Tracking: QR codes can be used to track...
  • What is a QR code reader? Why do we need to use a QR code reader?
    What is a QR code reader? Why do we need to use a QR code reader? Mar 27 , 2023
    A QR code reader is a software application that can scan and decode Quick Response (QR) codes using a smartphone or a specialized scanner device. QR codes are two-dimensional barcodes that can store large amounts of information, such as URLs, text, and other data.When a QR code is scanned with a QR code reader, the reader captures the image of the code and converts it into a digital format that ca...
  • Magnetic Sensor Features
    Magnetic Sensor Features Mar 27 , 2023
    A magnetic sensor is a sensor that detects changes in a magnetic field. Its functional characteristics are as follows:1. High-precision measurement: The magnetic sensor can measure small changes in the magnetic field and has high-precision measurement capabilities.2. Non-contact measurement: The measurement principle of the magnetic sensor is based on the action of a magnetic field, and it does no...
  • Introduction to One-way Door Detector
    Introduction to One-way Door Detector Mar 24 , 2023
    A one-way door detector is a kind of vehicle detector, which is mainly used to control the automatic opening and closing of barriers or doors of one-way lanes. Its principle is to control the opening and closing of the door or gate by sensing the change in the magnetic field of the vehicle, so as to realize the automatic passage or stop of the vehicle. Its main uses include the following aspects:1...
  • How To Choose A Suitable Wiegand Converter
    How To Choose A Suitable Wiegand Converter Mar 24 , 2023
    How to choose a suitable Wiegand converterTo choose a suitable Wiegand converter, the following factors should be considered:1. Wiegand signal type: Different Wiegand converters support different Wiegand signals, such as Wiegand 26, Wiegand 34, etc. When choosing a Wiegand converter, it is necessary to determine the type of Wiegand signal that needs to be converted and select the corresponding con...
  • What are the common styles of Tuya smart switches?
    What are the common styles of Tuya smart switches? Mar 23 , 2023
    Touch button type:The switch panel is mainly composed of tempered glass and aluminum alloy metal frame (or plastic frame), which can be engraved or customized, and the decorative effect is more beautiful and generous. It is easy to break the panel when the installation is not careful, the replaceability is poor, it is not convenient for after-sales maintenance, and the cost is also high. Especiall...
  • How to choose a suitable RFID reader?
    How to choose a suitable RFID reader? Mar 23 , 2023
    RFID technology is radio frequency identification technology, which is a kind of automatic identification technology. It uses wireless radio frequency to carry out non-contact two-way data communication, and uses wireless radio frequency to read and write recording media (electronic tags or radio frequency cards) to achieve identification goals and data. The purpose of exchange" So in various...
  • Tuya WiFi door open button Features
    Tuya WiFi door open button Features Mar 20 , 2023
    Tuya WiFi door open button is a smart home product with the following features:1. Remotely open the door2. WiFi connection3. Safe and reliable4. Multiple ways to open the door5. Wide range of application6. Power-saving and energy-saving7. Easy to install1. Remotely open the door: Remotely control the door through the mobile APP, no need to swipe the card or use the key near the access control, whi...
  • Functional characteristics of fire exit lock escape push rod lock
    Functional characteristics of fire exit lock escape push rod lock Mar 20 , 2023
    The fire exit lock escape push rod lock is a safety lock used for emergency escape and fire extinguishing. Its functional characteristics are as follows:1. Emergency escape2. Anti-theft protection3. Durability4. Simple and easy to use5. Compliance1. Emergency escape: The fire exit lock escape push rod lock can easily open the door lock from the inside by gently pushing the lock lever, which is con...
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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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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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