We have noticed that several customers have recently asked the same question, why did they receive the price it is cheaper? From the pictures, they all look like identical products, but our prices are much higher than those of our peers.Therefore, to solve the customer's doubts, we deliberately ordered back samples from peers for comparison.We take door handles, an everyday item seen everywhere, for instance. I have crafted a detailed  comparison chart for your reference.In today's competitive market, many factories are focused on producing low-priced products to attract customers. While this approach might seem appealing at first glance, it's important to understand that not all products are created equal, even if they appear similar in pictures. At S4A, we prioritize quality, durability, and customer satisfaction, which is why our prices are higher than those of our peers. To clearly understand the value we offer, we have created a detailed comparison table highlighting the differences in material, size, workmanship, thickness, and other key aspects.Understanding the Difference: Quality Over QuantityMaterial Quality: The materials we use are carefully selected for their durability and performance. While many low-priced products use cheaper, less durable materials, our products are made from high-quality components that ensure longevity and reliability.Precision and Workmanship: Our manufacturing process involves meticulous attention to detail and superior craftsmanship. Each product undergoes rigorous quality control checks to meet our high standards, which may not be the case with lower-priced alternatives.Size and Specifications: Our products are designed to meet exact specifications and standards. We ensure that each product is manufactured to precise dimensions, providing consistency and reliability that you can trust.Thickness and Robustness: The thickness of the materials we use is often greater than that of our competitors. This added thickness contributes to the overall strength and durability of the product, making it more resilient to wear and tear.Innovative Design Features: We incorporate innovative design features that enhance the functionality and usability of our products. These features might not be visible in pictures but make a significant difference in performance and user experience.The Comparison TableTo give you a detailed understanding of why our prices are higher, please refer to the table below:Conclusion:While the initial cost of our products may be higher, the long-term benefits and value they provide far outweigh the savings offered by lower-priced alternatives. Investing in quality means fewer replacements, less downtime, and a better overall experience. We believe that our customers deserve the best, and we are committed to delivering products that meet and exceed their expectations.We hope this detailed comparison helps you understand the reasons behind our pricing and the value that we offer...

To respected Partners:As the New Year is fast approaching, we truly and sincerely appreciate your strong support for our company. S4A will officially commence its holiday on 18th,January and resume work on 6th,February , 2025.During this holiday break, you can rest assured that all our sales staff will be on standby and ready to promptly reply to customers' messages. In case you encounter any technical issues that need to be resolved, please do not hesitate to reach out to us directly through email or by phone.Thank you all, and we look forward with anticipation to a wonderful new year.

At the S4A factory, we specialize in the precision manufacturing of access control systems and automatic door opener units. With a steadfast commitment to excellence, our facility is equipped with cutting-edge technology and operated by a team of highly skilled professionals. We adhere to the highest industry standards to ensure that every product we produce meets the demands of quality, reliability, and innovation that our customers have come to expect. Our product portfolio is a testament to our expertise in the field, offering comprehensive solutions designed to enhance security and convenience. From sophisticated access control units to state-of-the-art automatic doors, S4A is dedicated to delivering products that are at the forefront of technological advancement. As industry leaders, we take pride in our ability to customize solutions to fit the specific needs of our clients, providing not only exceptional products but also unparalleled service and support. Choose S4A for your access control and automatic door requirements and experience the difference that professional-grade manufacturing can make.>    

A valued customer of 10 years recently inquired about distinguishing between the left and right opening for the BL-2800 frameless electric Dropbolt lock. To ensure clarity, I requested our designer to create a detailed illustration, making the distinction easier to understand. So for any inquiries, pls message S4A and Ms Anna Zhang.Why do glass doors need to be installed with BL-2800 electric frameless locks?Electric frameless locks are essential for glass doors for several key reasons:Enhanced Security: Glass doors, while aesthetically pleasing, can be more vulnerable than solid doors. Installing electric frameless locks ensures a higher level of security by providing robust locking mechanisms that are difficult to tamper with.Aesthetic Integration: Frameless electric locks are designed to be sleek and unobtrusive, blending seamlessly with the modern look of glass doors without compromising their aesthetic appeal.Access Control: These locks can be integrated with access control systems, allowing for controlled entry and exit. This is particularly useful for offices, commercial buildings, and secure areas where monitoring and controlling access is crucial.Durability: Electric frameless locks are built to withstand frequent use, making them ideal for high-traffic areas. Their robust construction ensures longevity and reliable performance over time.Convenience: They often come with features such as remote access, automatic locking, and compatibility with various access methods (keycards, biometrics, etc.), enhancing user convenience and operational efficiency.Safety: In case of emergencies, many electric frameless locks are equipped with fail-safe or fail-secure options, ensuring that the door can be safely accessed or locked down as needed.Overallelectric frameless drop bolt locks combine security, functionality, and style, making them an excellent choice for glass doors in various settings.

Headquartered in Shenzhen. S4A has been working hard in the access control industry for more than +15 years,We have got strong technicalsupport from various main chips, PCB, and housing manufacturers, and integrated a complete industry application supply chain system.With strong product R&D/design capabilities and cost advantages, we can provide you with assured services. S4A with 5self-factories in the Access Control industry, The main production line is, Network access controllers,Electromagnetic lock,Rfid standalone access control, UHF long-range reader, Automatic Swing door opener, etc, and related accessories. The company is committed to continuously developing new products, opening up new markets, vigorously promoting "5S"management,and strengthening the concept of civilized production. With good credit and excellent service, we haveestablished long-term cooperative relationswith many enterprises. Over the years, a full range of products have spread all over the world, Southeast Asia, South America, Europe, Africa, Asia,and other regions, and have won the trust of our customers.Based on the tenet of "quality first, service first, reputation first", we will create brilliance with new and cooperative customers with a professionaland innovative business philosophy and a professional spirit of efficiency first.  From the purchase of raw materials, then each shell must be inspected.

In today's increasingly competitive and transparent business landscape, customers often seek varied pricing options for identical products, yet they may not always recognize underlying cost factors. A long-standing client, with whom we've partnered for five years, recently inquired about alternative pricing for a particular product. In response, I provided a comparison of three standard price points for their consideration.There is no absolute measure of a product's quality; what matters most is its fitness for the individual's needs and preferences.

The Outdoor Waterproof Smart Key Box K5F is a versatile and secure solution for key management, offering several key advantages. Firstly it supports the Tuya or TTLock apps, providing users with flexible and convenient control options via Bluetooth. Secondlyits IP65 rating ensures robust protection against water and dust, making it ideal for outdoor use in various weather conditions. Lastlythe K5F includes a mechanical key override, adding an extra layer of security and reliability, ensuring access even if electronic components fail.

Why do R02 and ITS-AX2 radars only have the normally open and no normally closed functions?Radar systems are usually designed to be normally open because the main function of radar is to detect and track targets. When no target is detected, the radar does not need to send a signal, thus maintaining concealment and avoiding unnecessary energy consumption. When the radar detects a target, it will activate and send a signal, which ensures that detection is only carried out when necessary, improving efficiency and reducing exposure to the enemy.In addition, the normally open design of the radar is also related to its working principle. The radar detects the target by emitting electromagnetic waves and receiving the signal reflected by the target. Suppose the radar system is designed to be normally closed. In that case, that is, continuously sending signals will not be able to distinguish between background noise and signals reflected by the target, thus affecting the accuracy of detection. By keeping silent when there is no target, the radar can more clearly identify the real target signal.Therefore, the normally open design of the radar is to optimize its detection performance and ensure that the target can be effectively detected and tracked while maintaining concealment. This design enables radar to play a key role in military and civilian fields, such as air traffic control, meteorological monitoring, and ocean surveillance.

An Electric DropBolt lock is a security device typically installed within a door and controlled electronically. Here's a brief description of how it might be tested in a workshop setting:Electric DropBolt Lock Testing Procedure in the Workshop:    Visual Inspection: Begin with a thorough visual examination of the lock to ensure there are no visible defects or damage.Mechanical Function Test: Manually operate the lock to test its mechanical components, such as the latch and deadbolt, to ensure they engage and disengage smoothly.Electrical Connection: Connect the lock to a power source and appropriate control system to simulate the electrical operation.Control Signal Test: Send electronic signals to the lock to test its response. This may involve using a keypad, card reader, or other access control devices.Timing and Latching Test: Verify that the lock operates within the specified time frame and that the latch fully extends into the strike plate.Durability Test: Perform a series of open and close cycles to ensure the lock's durability and reliability over time.Security Test: Test the lock's resistance to forced entry, picking, and other potential security threats.Environmental Test: If applicable, expose the lock to various environmental conditions (such as temperature and humidity changes) to ensure it meets environmental resistance standards.Software Functionality: If the lock is connected to a larger access control system, test the software for proper functionality and communication with the lock.Final Inspection: Conduct a final inspection to ensure all components are functioning correctly and that the lock meets all quality and performance standards.Note: It's important to follow the manufacturer's guidelines and safety protocols when testing any electronic lock. Additionally, all testing should be conducted by qualified personnel in a controlled environment to ensure accurate results and safety.