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  • Q: 19)What is the thing called that closes a door?

  • A:

    An automatic door closer, more often called a "door opener", opens the door itself, typically under the control of a push button, motion detector or other device, and then closes it as well, employing a motion or proximity detector to determine when it is safe to close the door.

     


  • Q: 20)Why are automatic doors important?

  • A:

    Automatic doors effectively contribute to energy saving and reduce annual heating and cooling costs. Doors open only when activated and automatically close so to eliminate the doors being left open. They also prevent air-conditioning from escaping and outside air and dust from entering.


  • Q: 21)How long should an automatic door stay open?

  • A:

    When powered open, the door shall remain at the fully open position for not less than five seconds. Exception: When push-pull activation is used, the door shall remain at the fully open position for not less than three seconds

  • Q: 22)How do you make an automatic door opening and closing?

  • A:

    Automatic Door Opener using Arduino and PIR Sensor


    1. An Automatic Door Opener System is a simple project based on PIR Sensor and Arduino, which automatically opens and closes the door by detecting a person or object.

    2. You might have seen Automatic Door Opener Systems at shopping malls, cinemas, hospitals, etc


  • Q: 23)How do motion sensor doors work?

  • A:

    When you step on the mat, the sensors send a signal to the automatic doors that tells them to open. Other automatic doors operate on optic or motion sensors. When these optic or motion sensors sense motion nearby, they trigger the automatic doors to open and then close

  • Q: 24)What company makes automatic door opener?

  • A:

    S4A INDUSTRIAL CO.LIMITED manufacturers Automatic door openers for industrial, commercial use, healthcare, and retail use, we also perform repairs and maintenance forever,1year quality guarantee and replace it 1:1 and all technical questions will be solved it within 4hours at working-time.

  • Q: 25)Which type of sensor is used for door installations?

  • A:

    Motion detectors or optical sensors


    These days, most automatic doors use motion detection sensors or optical sensors, which are installed on the sides of the door, to trigger the opening/closing of doors. These sensors, as their names imply, detect or 'look for' motion in front of the gate. But in the S4A company, we used Motion detectors for ED100.

  • Q: 26) Can the door system hold-open time be adjusted?

  • A:

    Yes, both of our automatic door systems can be manually adjusted for a hold open up to 30 seconds or set to require a manual signal to close when the user is ready.

  • Q: 27) Does it matter if the opener is installed on the inside or outside of the door?

  • A:

    Yes, it matters. To prevent damage from weather exposure and possible vandalism all of our handicap door openers must always be installed inside. There are no exceptions to this requirement.

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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:#601,floor 6 ,building 1,JINFANGHUA industrial zone, 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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