Today, a customer who has been working with us for two years asked this question.

UID card and Mifare Classic 1K card are two different types of smart cards, which differ in design and function:

Storage structure: Mifare Classic 1K card has 1KB of storage space, divided into 16 sectors, each sector contains 4 blocks, each block is 16 bytes. Block 0 of sector 0 usually contains the manufacturer UID code as the card identification code. UID card is a common copy card, which can repeatedly erase and write all sectors, but it may fail if the access control system has a firewall.

Security: Sector 0 of Mifare Classic 1K card cannot be modified, and other sectors can be repeatedly erased and written. It has 4 main permissions: read, write, increment, decrement, and 2 additional permissions: read and write control code, read and write A/B password. These permissions require the use of A or B password and operate under the constraints of the control code.

Use: Mifare Classic 1K card is usually used for access control cards, elevator cards, etc., while UID card may be used in some scenarios that do not require high security. The design of the Mifare Classic 1K card includes security considerations, such as using passwords to protect access to sectors.

Special types: There are different types of cloned cards, such as CUID, FUID, and UFUID, which provide different levels of security and features. For example, CUID cards can penetrate most firewalls, while UFUID cards become M1 cards after sealing the card, and UID cards if the card is not sealed.

get more RFID reader deatils from www.s4a-access.com  quickly.

UID and BCC: Mifare Classic 1K cards, like other MIFARE cards, have a UID (Unique Identifier) and a BCC (Block Check Code). The BCC is a checksum of the UID, and if not configured correctly, it may cause the card to be undetectable, i.e. "bricked".

Modifiability: Some MIFARE cards, known as "Magic" cards, allow the manufacturer block to be modified, which is not allowed in the original card. However, if Block 0 is not configured correctly, the card may be "bricked", i.e. irreversibly damaged.

Technical cracking: Mifare Classic was cracked in 2008. If the KEY of any segment in the card is known, all KEYs can be obtained through simple brute force. But many cards used in formal occasions do not use the default key

Why do we need to install a 90-degree automatic gate opener? What are the advantages? Several new customers have recently asked the same question about automatic door openers.

here are three of the biggest advantages of a 90-degree automatic swing gate opener:

Enhanced Accessibility: A 90-degree automatic sliding gate opener provides a wider opening than traditional doors, allowing for easier access for people with disabilities, such as those in wheelchairs, as well as those pushing strollers or carrying bulky items. This can be especially beneficial in public spaces like hospitals, airports, and shopping centers.

Improved Safety: Automatic doors, including 90-degree openers, can help reduce the risk of accidents caused by manual doors. They eliminate the need for individuals to physically push or pull the door open, which can lead to slips, trips, and falls. Additionally, automatic doors can be equipped with sensors that detect the presence of people or objects in the doorway, helping to prevent collisions and injuries.

Increased Efficiency: In high-traffic areas, manual doors can create bottlenecks and slow down the flow of people. A 90-degree automatic door opener can help alleviate this issue by allowing for a smoother and more efficient traffic flow. This can be especially important in commercial settings, such as retail stores, where a fast and efficient customer experience is crucial. Additionally, automatic doors can be programmed to open and close at specific times, helping to conserve energy and reduce costs.

How do 90-degree automatic door openers differ from other types of door openers in terms of design and functionality?

90-degree gate opener system differentiates from other types of door openers in several ways, particularly in their design and functionality:

Opening Mechanism: The most obvious difference is the opening angle. A 90-degree automatic door opener swings the door open to a full 90-degree angle, unlike sliding door systems or revolving doors, which move differently.

Space Requirements: Due to the 90-degree swing, these openers require sufficient space on one side of the door for the door to open fully without obstruction. This contrasts with sliding door systems, which do not require additional lateral space.

Energy Efficiency: Some 90-degree automatic door openers are designed with energy-saving features, such as motion sensors that activate the door only when needed, reducing unnecessary energy consumption compared to continuously powered systems.

Integration with Security Systems: They can be integrated with access control systems for added security, allowing the door to open only for authorized individuals. This level of integration might vary with other door opener types.

Sensor Technology: 90-degree automatic door openers often utilize advanced sensor technology to detect the presence of people or objects, ensuring safe operation and preventing the door from hitting anything during its swing.

Aesthetics: The design of a 90-degree gate automatic opening system can be more streamlined and less obtrusive than other types, especially when considering the visibility and aesthetics of the mechanism.

Maintenance: The maintenance requirements for a 90-degree sliding automatic gate opener kit can differ from other types. For instance, hinged doors may require less maintenance than sliding or folding door systems, which have more moving parts.

Weather Resistance: Some models are designed to withstand various weather conditions, ensuring reliable operation even in adverse climates, which might be a consideration not as prevalent with indoor-only door systems.

Each type of swing gate operator is suited to different applications based on the specific needs of the building or space they are intended for. The choice of door opener will depend on factors such as available space, traffic flow, security requirements, and environmental conditions.

If you wanna know more products or require any additional information, pls kindly contact us as below:

S4A INDUSTRIAL CO.,LIMITED

Contact Sales: Ms Anna Zhang

Tel:+86 755 29450011 EXT: 608

Mob/whatsapp/Viber +86 134 10500721

Skype:crypton0908

Email: sales1@s4a-access.com

If there is a trip or power outage, it is generally caused by excessive power consumption, short circuit or wrong wiring, or improper settings.

Because the limit switch is disconnected when the door is opened, the control circuit is open and causes tripping. This is a protective function.

The reason why the 90-degree automatic door opener suddenly tripped may be excessive power consumption. When the power consumption of a device or system exceeds the carrying capacity of the circuit or power supply, to protect the Door opener and power supply from damage, the automatic tripping mechanism will be triggered, thereby cutting off the power supply to prevent the device or system from being damaged due to overload. In this case, checking and reducing power consumption is an effective solution. In addition, ensuring that the carrying capacity of the power supply and circuit matches the actual power consumption of the equipment is also an important measure to prevent tripping.

3main reasons:

1. Circuit fault causes the electric door to trip

2. Switch fault causes electric door to trip

3. Electric door motor overload causes the trip

The Microscopy Society of Canada(MSC-SMC) is excited to host the 2025 51st Meeting in Winnipeg! 

MSC hosts a series of talks and workshops within the fields of materials, life science, and AI-driven image analysis, incorporating various microscopy techniques, including Light/Fluorescence Microscopy, Electron Microscopy, OM, X-Ray, and AFM. Come to get advice from an expert in AFM, SEM, LSM, etc...

CIQTEK invites conference attendees to visit our booth at the exhibition hall to learn more about Scanning Electron Microscope instruments and solutions. The company's representatives will be available to provide detailed information, answer questions, and explore potential collaborations with researchers, scientists, and industry professionals attending the conference.

Meet us at MSC

Date: June 9 - 12, 2025

Location: University of Manitoba, Canada

Looking Beyond the Price Tag of SEM Equipment

For universities, research centers, and industrial labs in Saudi Arabia, Scanning Electron Microscopes (SEMs) are essential tools. Whether it’s materials science, petrochemicals, nanotechnology, or semiconductor inspection, SEMs provide the high-resolution imaging needed for advanced analysis. However, the actual cost of owning and operating an SEM goes far beyond the initial purchase.

Key cost factors include:

• •  ▪  Equipment acquisition and setup
•  ▪  Regular maintenance and service contracts
•  ▪  Replacement of consumables like filaments and vacuum components
•  ▪  Downtime due to limited technical support or delayed parts
•  ▪  User training and interface usability for teams with varying experience

In Saudi Arabia, where lab teams often manage mixed workloads with tight budgets, understanding the full cost structure is critical before choosing an SEM brand.

High Cost Doesn’t Always Mean High Performance

Traditionally, many Saudi labs have turned to well-known SEM brands from the US, Europe, or Japan. These systems often deliver excellent image quality but come with high acquisition and operational expenses. Meanwhile, lower-cost alternatives can struggle with image resolution, user experience, or reliability.

This has prompted a shift. More labs in Saudi Arabia are exploring newer SEM providers that combine strong performance with practical pricing and reliable local support.

One example comes from a materials research center. The team needed a field-emission SEM with low-voltage capability and EDS integration for surface analysis. After comparing several suppliers, they selected CIQTEK SEM3200. The decision was based on clear image quality, stable low-kilovolt operation, and a smooth installation experience. The lab noted how quickly their researchers were able to learn the system thanks to the straightforward user interface.

Why Local Support Makes a Big Difference

In Saudi Arabia, reliable technical support and fast response are essential for labs that depend on continuous operation. Many users find that after-sales service and the availability of local training can significantly affect the total value of an SEM system.

CIQTEK has been actively expanding its presence in the Middle East, working with regional partners to deliver faster support and on-site demonstrations. For example, in recent product presentations conducted in Riyadh and Dubai, researchers highlighted the system’s fast start-up time, user-friendly interface, and strong imaging performance under variable vacuum conditions. These sessions provided hands-on experience for engineers and lab staff, helping them understand how the system fits into their real-world workflows.

CIQTEK SEM: Balanced Cost and Performance, Ready for Saudi Labs

CIQTEK has become a preferred choice among several research and industrial users in the Middle East, thanks to key advantages:

•  ▪  High-resolution imaging with stable performance
•  ▪  Smart software design for both beginners and advanced users
•  ▪  Options for modular upgrades, such as EDS or cryo-stages
•  ▪  Fast delivery and technical response times in the region
•  ▪  Clear pricing and transparent maintenance structure

For Saudi labs that need to justify their investments based on both capability and sustainability, CIQTEK offers a practical and powerful solution. In 2024 alone, multiple CIQTEK SEMs were delivered to clients in Saudi Arabia and the UAE. Researchers emphasized the smooth onboarding experience, which is especially important for university settings with rotating student users.

Practical Value Comes From What You Can Use

As more Saudi labs plan for SEM upgrades or new installations, it’s becoming clear that value is not only about the specs on paper. It’s about what fits real workflows, local support availability, and long-term maintenance costs.

CIQTEK is helping labs across the region move beyond trade-offs between quality and cost. With systems already in place in Saudi Arabia and nearby markets, the company is proving that powerful imaging and practical ownership can go hand in hand.

To explore a local demo or learn more about CIQTEK's SEM solutions, contact your nearest CIQTEK partner or visit the CIQTEK website

In the world of outdoor sports, an accurate compass function is essential for watches. It can guide us in the wild and avoid getting lost.

Today, let's compare the compass functions of two popular outdoor sports watches, NORTH EDGE AP46 and Garmin Fenix 7.

The compass of NORTH EDGE AP46 adopts a high-precision digital design, which can accurately display the magnetic declination and provide stable and accurate direction indication, and has an automatic calibration function. For outdoor enthusiasts, the operation is relatively simple. Users can manually calibrate according to the actual environment to ensure that accurate direction information can be obtained in different magnetic field environments. Press the corresponding button to quickly obtain direction information.

In actual outdoor use, the compass of NORTH EDGE AP46, combined with its barometer, altimeter and other functions, can provide users with more comprehensive environmental data to assist in judging weather changes and terrain trends. Moreover, its operation interface is simple and clear, which is convenient and quick to read direction information, and it is easy to get started even in tense outdoor sports scenes.

The compass of Garmin Fenix7 is powerful and accurate. It uses advanced three-axis electronic compass technology to determine the direction without horizontal shaking. In addition, the compass of the watch can be deeply integrated with the GPS system to mark the route and location on the map in real time, which is very useful for outdoor sports enthusiasts who explore complex terrain. In addition, Fenix 7 also has a variety of navigation modes, such as waypoint navigation, route navigation, etc., and users can switch flexibly according to different needs.

Garmin Fenix 7 is better in integration with GPS and diversity of navigation modes, suitable for outdoor sports enthusiasts who want a comprehensive navigation experience; NORTH EDGE AP46 wins with high-precision magnetic sensors and customizable calibration functions, and is more popular with users who focus on basic function accuracy and personalized settings.

A Scanning Electron Microscope (SEM) is a powerful microscope that uses a high-energy electron beam to scan the surface of a specimen, capturing signals emitted or scattered by electrons to generate high-resolution images of the specimen surface. SEM can magnify images by thousands to tens of thousands of times, revealing a microscopic world that is imperceptible to the naked eye.

Under the CIQTEK Scanning Electron Microscope, we can observe the fine textile structure of lizard skin cells, which allows for a visual examination of the structural characteristics of crystalline plates in the skin, such as their size, length, and arrangement. These images not only provide a visual feast but also offer crucial clues for scientists to interpret material properties, disease mechanisms, and biological tissue functions.

Figures1. Ultrastructure of lizard skin/30 kV/STEM

In the field of electron science, SEM helps engineers examine tiny solder joints and conductors on circuit boards in detail to ensure the precision and reliability of technology. In materials science, SEM can be used to analyze fracture surfaces of metal alloys, optimizing industrial design and processing technology. In biological applications, SEM can display the surface structure of bacteria and even observe interactions between viruses and host cells.

Figures2. SEM3200/Ordinary chip2/10 kV/ETD

SEM is not just a machine; it is more like a meticulous detective that helps us uncover the microscopic secrets in nature and man-made objects, providing strong support for scientific research and technological innovation. Through SEM, scientists can better understand the nature of materials, the structure of biological tissues, and the essence of various complex phenomena, pushing the boundaries of our knowledge forward.

Common Misconceptions about SEM:

1. Are SEM images in true colors?

SEM produces black and white images because they result from the interaction of electrons with the specimen, not from light waves. The colored SEM images typically seen are post-processed using digital coloring techniques to distinguish different structures or enhance visual effects.

2. Is higher magnification always better?

While SEM can provide extremely high magnification, not all research requires maximum magnification. Excessive magnification beyond the specimen's feature scale not only increases scanning time but may also lead to an increase in irrelevant information.

3. Can SEM see atoms?

Although SEM offers high resolution, it often cannot reach the level of observing individual atoms. To observe structures at the atomic scale, transmission electron microscopes (TEM) or scanning tunneling microscopes (STM) are typically needed.

4. Is SEM only suitable for solid and lifeless specimens?

While SEM was initially designed for solid materials, modern techniques allow observation of biological specimens as well. Through specific specimen treatments such as freezing, drying, or coating with conductive materials, SEM can also be used to observe biological tissues and cells.

5. Can SEM images fully represent the actual conditions of a specimen?

SEM images are two-dimensional projections obtained from specific angles and parameters, which may not fully reveal the three-dimensional structure and true conditions of the specimen. Additionally, the specimen preparation process may cause deformations or artifacts that can affect the accuracy of the results.

Operating a Scanning Electron Microscope (SEM) in Saudi Arabia’s arid, dust‑laden environment calls for focused upkeep. From airborne sand infiltrating your chamber to extreme temperature swings stressing components, disciplined maintenance ensures clear images and steady uptime. Below are four actionable strategies—free of fabricated case stories—to help you fortify your SEM instrument against desert challenges, while highlighting how CIQTEK’s design and regional support can simplify each step.

1. Dust Filters & Heating, Ventilation and Air Conditioning (HVAC) Control

Keep sand before it reaches your SEM’s breathing zones.

• Multi‑stage air filtration: Fit your lab’s HVAC intake with a pre‑filter rated at Minimum Efficiency Reporting Value (MERV) 8, followed by a MERV 13 final filter. Change the pre‑filter monthly during sandstorm season to protect your SEM’s compressor and electronics cabinet.

• Temperature stability: House your SEM in a climate‑controlled enclosure. Maintaining ±2 °C variation prevents thermal drift during long image acquisitions. CIQTEK SEM instruments are built to integrate seamlessly with portable clean‑air enclosures, simplifying installation.

2. Vacuum System: Routine Service Essentials

A reliable vacuum underpins every high‑resolution image.

• Oil‑ring pump maintenance: Replace your rotary vane pump oil every 500 hours—or sooner if the oil appears cloudy. CIQTEK recommends its high‑purity vacuum oil, which helps resist contamination in dusty regions and extends service intervals.

• Leak checks: Conduct a quarterly helium‑sniffer test around all seals. Even minor leaks at O‑rings can elevate chamber pressure and degrade resolution. CIQTEK SEM microscope’s modular door‑seal kits allow tool‑free seal changes in under ten minutes.

3. Rapid Troubleshooting: Keeping Your Workflow Flowing

Fast fixes for common hiccups keep projects on schedule.

• Beam drift: If your electron beam drifts off‑center, verify stage‑to‑column alignment and tighten any loose stage clamps. Then launch your SEM’s auto‑align routine. CIQTEK’s SyncBeam™ software retargets your region of interest (ROI) in under two minutes.

• Charging artifacts: Unexpected image brightening or streaks on non‑conductive samples often indicate contamination on the flood gun filament. A controlled bake‑out at 150 °C for two hours typically clears carbon buildup—no replacement parts needed.

4. CIQTEK Local After‑Sales Support Process

Expert backup when and where you need it most.

Distributor hotline: Submit parts or service requests through CIQTEK’s authorized Saudi agent—expect same-day acknowledgment and prompt dispatch of parts.

Preventative maintenance visits: Schedule biannual on-site service to inspect pumps, filters, and alignments, and recalibrate detectors.

Remote assistance: For urgent diagnostics, leverage CIQTEK’s remote access capability to collaborate with a field application specialist at our regional support center in real time.

By enforcing robust filtration, disciplined vacuum care, a clear troubleshooting protocol, and plugging into CIQTEK’s Saudi‑based support network, your SEM machine will stay in peak condition, no matter how fierce the desert elements. Ready to strengthen your lab’s imaging reliability? Reach out to CIQTEK today.

Choosing a DualBeam FIB-SEM is a pivotal decision for any microscopy lab—especially in Saudi Arabia’s booming research and petrochemical sectors. Before committing budget and bench space, ask yourself these five questions to ensure your system delivers the performance, reliability, and local support you need.

1. How Do Ion-Beam Current and Spot Size Impact Your Application?

High-current beams mill faster but sacrifice resolution; low-current beams deliver nanoscale precision at the expense of throughput. Ask the vendor for beam-current vs. spot-size curves to see where their instrument excels.

• Why it matters in Saudi labs: In petrochemical catalyst research, rapid trenching for EDS or TEM lamella prep is vital—yet you still need <10 nm trenches to inspect nanoporous structures.

• CIQTEK Advantage: CIQTEK’s DualBeam offers selectable beam currents from 1 pA to 20 nA with spot sizes down to 3 nm. With the click of a button, you can toggle between “fast-mill” and “fine-polish” modes.

2. What’s the Synergy Between SEM Imaging and Ion Milling?

True DualBeam performance lies in seamless coordination of electron and ion columns. Look for:

• Auto-alignment routines that correct drift between cuts.

• Live-drift compensation so you’re always imaging the right feature.

• Integrated stage tilting to switch between cross-sectioning and plan-view without manual refixturing.
  Real-world wins: In a recent demonstration at a major Riyadh materials center, users cut and imaged solder joints in under 10 minutes—half the time of their legacy tool.

• CIQTEK Advantage: Proprietary “SyncBeam” software synchronizes both columns in real time, yielding crisp, shadow-free cross-sections even on rough, uneven samples.

3. Does the Software Play Nice with Your Workflow?

Look beyond simple GUIs. Modern labs crave:

• Scriptable APIs for automated runs.

• Recipe libraries for repeatable tasks (e.g., trench → polish → lift-out).

• Remote monitoring so you can queue overnight jobs and check progress from your office or home.
  Why Saudi facilities love it: With labs spread across King Abdullah University and industry sites, remote access is a game-changer.

• CIQTEK Advantage: Their Python-based SDK lets you draft custom milling routines in minutes, while the cloud dashboard pushes live status updates to any web-connected device.

•  

4. What Level of Training and Technical Support Comes with Your Purchase?

A cutting-edge instrument is only as good as the team that runs it. Key questions:

• Will a factory engineer be on-site for installation?

• Is there a local parts inventory in the GCC for rapid spares delivery?

• What’s the SLA for service calls—4 hours? 24 hours?
  Local feedback: Customers in Dubai praised CIQTEK’s Middle East service hub for dispatching a replacement detector within 48 hours—no shipping hold-ups.

• CIQTEK Advantage: Through the trusted Saudi distributor, CIQTEK coordinates rapid service support and parts delivery in the Kingdom, and offers cost-effective system packages that rival higher-priced alternatives—without cutting corners on performance or reliability. They also help organize quarterly user workshops (both virtual and in-person) to keep your team at peak performance.

5. Do You Have Proven Local References and Application Success Stories?

Nothing beats peer feedback. Before buying, ask for:

• On-site visits to existing installations in the Kingdom.

• Case studies in your field—semiconductors, metallurgy, battery materials, etc.

• User testimonials you can verify.

• 
  CIQTEK in the GCC: According to the Saudi distributor’s feedback, several petrochemical, battery-materials and university labs in the Kingdom have evaluated CIQTEK DualBeam systems this past year—many noting boosts in throughput and nanometer-scale resolution. The regional applications partner also arranges hands-on demo days at KAUST and KFUPM so you can test your samples before committing.

Investing in a DualBeam FIB-SEM is about more than peak resolution or blazing-fast milling; it’s about finding a partner whose technology, software, and support mesh with your lab’s unique needs. By drilling down into beam specs, software flexibility, service SLAs and local success stories—especially right here in Saudi Arabia—you’ll make a confident, future-proof choice.

With its ultra-fine spot sizes, real-time SEM/Ion synchronization, open API, and 48-hour onsite support in the GCC, CIQTEK’s DualBeam FIB-SEM checks every box—empowering your team to tackle today’s toughest materials challenges and tomorrow’s breakthroughs.