What are the MENGQI-CONTROL 125kHz EM4100 RFID proximity cards used for?

The MENGQI-CONTROL RFID proximity cards are primarily used for secure access control systems. They communicate with RFID readers, allowing users to gain entry into buildings, restricted areas, or properties by simply presenting the card near the reader. This technology is ideal for businesses needing to manage employee access, such as corporate offices, warehouses, or educational institutions. Additionally, they can be applied in parking lot access, public transportation systems, and other security-sensitive environments.

How does the contactless technology work in these RFID cards?

The contactless technology in the MENGQI-CONTROL RFID cards operates using radio frequency signals. When the card is brought near an RFID reader, it uses the electromagnetic field generated by the reader to power the card, allowing it to transmit its unique identification number. This method ensures a seamless and quick entry without the need for physical contact, which enhances convenience for users. This feature is especially relevant in busy environments, where speed and efficiency are paramount.

Are the MENGQI-CONTROL RFID cards compatible with all RFID systems?

The MENGQI-CONTROL RFID cards are designed to be compatible with most 125kHz RFID access control systems, particularly those utilizing the EM4100 standard. However, compatibility may vary depending on the specific reader model and system specifications. To ensure proper functionality, it’s advisable to consult your RFID system documentation or the manufacturer to confirm compatibility. Proper pairing is crucial for optimal performance in a secure access environment.

Can these RFID cards be reprogrammed or reused?

The MENGQI-CONTROL RFID cards are generally not reprogrammable as they come with a unique identifier embedded within them. However, they can be used multiple times as access cards until they are lost or damaged. It’s essential to manage the cards carefully to maintain their integrity. For instances where frequent reconfiguration is required, users might consider systems that allow for programmable cards or, alternatively, utilize additional cards for different access levels.

What is the range of these contactless RFID cards?

The MENGQI-CONTROL contactless RFID cards typically have an effective read range of about 10 to 15 centimeters, depending on the reader being used. This range allows for quick and efficient access authentication as users only need to bring the card close to the reader. The proximity design reduces the likelihood of unauthorized scanning from a distance, enhancing security in various applications, such as office building entries and secure areas.

Are these cards suitable for outdoor use?

The MENGQI-CONTROL RFID proximity cards are designed primarily for indoor use. While they can withstand some environmental factors, prolonged exposure to harsh outdoor conditions such as rain, snow, or extreme temperatures can affect their durability and functionality. For outdoor access control needs, it’s advisable to consider specialized cards or protective casing to extend the life and performance of the RFID technology in outdoor environments.

How many RFID cards come in the pack?

The MENGQI-CONTROL pack contains 50 RFID proximity cards. This bulk option is ideal for businesses or organizations that require numerous access cards for staff, events, or building access. Having multiple cards ensures that all users can receive their own, facilitating easier management and distribution. This is particularly useful for larger teams or facilities needing a streamlined access control solution.

What type of RFID readers work with these cards?

The MENGQI-CONTROL RFID cards are compatible with RFID readers that are designed for 125kHz frequencies, particularly those that support the EM4100 standard. Common types of readers include desktop readers, handheld devices, and wall-mounted access control systems. When selecting a reader, it is recommended to check for compatibility with EM4100 technology to ensure that the cards will work flawlessly with the access control setup in place.

Do the cards require batteries or maintenance?

The MENGQI-CONTROL RFID proximity cards are passive devices, meaning they do not require batteries or regular maintenance. They derive power from the electromagnetic field produced by the RFID reader upon proximity. This design simplifies usage as no ongoing upkeep is necessary. Once issued, the cards can be used indefinitely until damaged or lost, making them a hassle-free solution for access control.

How to Shop MENGQI-CONTROL (Pack of 50) Contactless 125kHz Online From Ubuy?

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Is MENGQI-CONTROL (Pack of 50) Contactless 125kHz Available to Shop Online in UK?

Yes, at Ubuy UK this product is available for you to shop at a reasonable price. The MENGQI-CONTROL (Pack of 50) Contactless 125kHz is not available locally but you can trust us with our express shipping services.

How Long Does It Take to Get Product After Placing the Order?

The delivery time of your ordered product varies as per what you've ordered and the shipping method that you've chosen. The estimated delivery time is mentioned during the checkout process, so be carefree while shopping.

MENGQI-CONTROL

Upgrade your security with this pack of 50 contactless RFID proximity smart entry access cards.

MENGQI-CONTROL

Item #: 9493428

MENGQI-CONTROL (Pack of 50) Contactless 125kHz EM4100 RFID Proximity Smart Entry Access Card

Q: Where can I buy the MENGQI-CONTROL Pack of 50 Contactless 125kHz EM4100 RFID Proximity Smart Entry Access Card?

You can purchase the MENGQI-CONTROL Pack of 50 RFID Proximity Smart Entry Access Cards from Ubuy. Ubuy offers options for various countries, making it a convenient choice for securing your access control needs. Their platform provides detailed product descriptions, ensuring you have all the information necessary for your purchase decision.

89% of respondents would recommend this to a friend

Item #: 9493428

GBP 21

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If Item price + shipping is below GBP 135, 20% VAT will be calculated on checkout, if it is equal or above GBP 135, no VAT will be charged. )

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What Stands Out

Contactless Technology

The MENGQI-CONTROL cards utilize advanced contactless technology, ensuring quick and seamless access without physical contact, enhancing user experience and efficiency for secure entry systems.

High Compatibility

These RFID cards operate on a 125kHz frequency and are compatible with various access control systems, making them versatile for businesses, schools, and secure facilities seeking reliable entry solutions.

Bulk Pack Savings

Offering a pack of 50 cards, MENGQI-CONTROL delivers excellent value by reducing the cost per card, making it an economical choice for organizations requiring multiple access cards for staff or customers.

Product Details

Who Should Buy?

Small Businesses
Ideal for small enterprises needing secure, contactless access control for employees and equipment management.
Event Organizers
Perfect for managing entry access at events, ensuring streamlined and efficient attendee check-ins.
Home Security
Suitable for homeowners wanting to improve security systems with easy-to-use, contactless entry options.

Large Enterprises
May not fulfill the extensive access management needs and scalability required by larger organizations.

Product Description

MENGQI-CONTROL (Pack of 50) Contactless 125kHz EM4100 RFID Proximity Smart Entry Access Card

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Customer Questions & Answers

Question: How to Shop MENGQI-CONTROL (Pack of 50) Contactless 125kHz Online From Ubuy?

Answer: It’s easy to shop MENGQI-CONTROL (Pack of 50) Contactless 125kHz online from Ubuy. You just have to search for the product, choose your shipping method while checking out and get it delivered to your location.
Question: Is MENGQI-CONTROL (Pack of 50) Contactless 125kHz Available to Shop Online in UK?

Answer: Yes, at Ubuy UK this product is available for you to shop at a reasonable price. The MENGQI-CONTROL (Pack of 50) Contactless 125kHz is not available locally but you can trust us with our express shipping services.
Question: How Long Does It Take to Get Product After Placing the Order?

Answer: The delivery time of your ordered product varies as per what you've ordered and the shipping method that you've chosen. The estimated delivery time is mentioned during the checkout process, so be carefree while shopping.

MENGQI-CONTROL Home Security Systems Editorial Review

The Pack of 50 Contactless 125kHz EM4100 RFID Proximity Smart Entry Access Card promises convenience and security, but unfortunately, falls short of customers' expectations. According to several reviews, the cards are too thin and flimsy, leading to doubts about their durability. Furthermore, multiple customers reported that a significant number of cards in the pack did not work with their scanners. This suggests a lack of quality control in the manufacturing process. However, there are a few positive reviews, with some customers stating that the cards worked well and met their expectations. One customer even praised the affordability of the cards. Overall, the mixed feedback indicates an inConsistent experience with this product, making it difficult to recommend with confidence.

Customer Reviews & Ratings

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Pros

Affordable price
Some cards work well

Cons

Thin and flimsy

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9 September 2026 · via Trustpilot

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10 September 2026 · via Trustpilot

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“Easy to find and order what you want on the website. Delivery is quick to the UK”

8 September 2026 · via Trustpilot

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Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
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GBP 21

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Features & Benefits

Pack includes 50 contactless RFID proximity smart entry access cards
Read distance of 5-12mm
Compatible with standard EM4100 and EM4102 ID card systems
Operates at a frequency of 125kHz
Ideal for use in ID and access control systems
Upgrade your security with these high-quality access cards

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MENGQI-CONTROL (Pack of 50) Contactless 125kHz EM4100 RFID Proximity Smart Entry Access Card

GBP 21

Price Details

Price

Buy Now Pay Later

Fast Shipping

Free Return*

Secure Packaging

100% Original Products

PCI DSS Compliance

ISO 27001 Certified

What Stands Out

Product Details

Who Should Buy?

Product Description

Customer Questions & Answers

MENGQI-CONTROL Home Security Systems Editorial Review

Customer Reviews & Ratings

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Pros

Cons

Platform Trust & Buyer Confidence

WHY SHOP WITH US

Product Price History

Important information

GBP 21

Features & Benefits

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