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  • Q: 21)Can a magnet open a lock?

  • A:

    The magnet doesn't make the lock move: Every lock will work differently, but it's typically friction that causes this problem. If a piece of your lock is supposed to move, be sure it can move easily. If it's attached too tightly, your magnet may not be able to move it.


  • Q: 22)How do you open a lock without breaking it?

  • A:

    Slide another bobby pin or paperclip around in the master lock in order to disengage the spring from the lock. A popping noise will be heard when the master lock spring disengages and the lock will pop open. Using a bobby pin or a paperclip is a quick way to pick a master lock without breaking it.


  • Q: 23)How do you open a magnetic child lock?

  • A:

    If the door has a knob or handle, push IN on the door firmly, then use the magnet to unlock the door. If the lock is in contact with the strike, it will not unlock with the magnet. The strike should be adjusted to allow the lock to swing freely. If the door has no handle, make one using tape.


  • Q: 24)Will a rare earth magnet open a safe?

  • A:

    With the help of rare earth magnets, opening a safe can take just seconds. At least that is what Terry Whin-Yates of Mr. ... He showed that using a rare earth magnet, one can exploit the nickel piece in this Sentry Electronic Safe to get it open without any damage.


  • Q: 25)How do you break into a locked phone?

  • A:

    Switch off your Android handset and wait for some time.

    Now Press the '+' volume button and power button at the same time.

    It will open your Android device in Recovery mode. ...

    Next, when you get a list of options, tap on the 'Wipe Cache Partition To Clean Data'.


  • Q: 26)Are mag locks fail safe?

  • A:

    Because mag locks by design require a constant supply of electricity to remain locked, mag locks are fail-safe only — they do not function to keep the door locked from either side when the power is out.


  • Q: 27)What is the difference between electric strike and magnetic lock?

  • A:

    With a magnetic lock, the door is always locked from both sides of the opening. ... Electric strikes provide security only for the exterior side of the door. Occupants can freely exit at any time from inside the building simply by turning the knob or handle, or by depressing the pad on the exit device.


  • Q: 28)What is an electrified mortise lock?

  • A:

    Electrified Mortise locks

    This function ensures that anyone inside can get out simply by turning the handle, but outsiders must use a key or electric control of the lock solenoid. ... In fail-safe mode, power must be applied to lock the lock, whereas in the fail-secure mode power must be applied to unlock the lock.


  • Q: 29)Why is the magnetic lock not powered on?

  • A:

    The positive and negative poles are reversed, the power supply is wrong, and the magnetic lock itself is bad.


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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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