Tag Archives: RFID Keyfob

RFID Keyfob Technology

RFID Keyfob

RFID Keyfob Technology

Key fobs make your entry systems more efficient, secure and streamlined for your staff. They work through RFID, which uses electromagnetic fields to track information on tags.

They’re easy to use for time and attendance tracking, so you can be sure employees are following their assigned work schedules. They’re also an excellent way to upgrade your security with two-factor authentication.


Unlike traditional keys that can be copied and replicated, RFID key fobs have built-in security features to prevent theft. Specifically, they use encryption methods to scramble data between the fob and the access point, making it difficult for hackers to steal information from the signal. Fobs also feature a passcode that only works for a brief period of time, which prevents hackers from using stolen fobs to gain unauthorized access.

Adding an extra layer of security, many RFID key fob systems offer biometric authentication as part of their multi-factor authentication (MFA) system. Biometrics are unique to each person, making them an excellent way to protect access and ensure that only authorized users can use the system.

The use of multiple factors increases the difficulty for bad actors to successfully breach a system, which is especially important when it comes to sensitive information or assets like inventory. To reduce the chances of data breaches, many systems also use a secure transmission protocol to communicate with the reader.

To further improve the security of RFID key fobs, some systems require a longer read range than others. Generally, the higher the frequency band of an RFID key fob, the more secure it will be. Also, inexpensive “RFID sleeves” and “Faraday bags,” which contain metal, can help shield RFID fobs from hacking attempts.


Unlike traditional keys, RFID key fobs contain encrypted codes inside their microchip. This helps prevent thieves from picking locks or making copies, and it also makes them much harder to hack into. Additionally, some RFID Keyfob RFID key fobs feature a “sleep mode” that turns off RF signals after a certain period of time. Check your manufacturer’s documentation to learn more.

Convenience: RFID key fobs can be easily attached to a badge clip or lanyard, making them easy to carry and use. They’re also a great option for people who want to boost security with two-factor authentication. In addition, RFID key fobs are small and lightweight – perfect for adding to key rings or necklaces.

For apartment complexes, RFID key fobs provide a convenient way to grant access to common areas. They can also be used to control when residents can use a particular service, such as the gym. This can help to keep buildings secure and prevent theft from tenants who aren’t authorized to use the facility.

Another way that RFID key fobs can improve security is by preventing theft of equipment or tools. By attaching specialized RFID tags to expensive assets, employees can track their location and reduce the chances of them being stolen. The tags are also a convenient alternative to traditional key fobs, which can be difficult for workers to keep track of.


Many establishments like hotels use RFID key fob to tighten their security and simplify some complex tasks. This technology makes it easier for the hotel staff to give keys to guests without running security checks, which can save a lot of time and effort. It also prevents theft, robbery and other security issues.

The RFID chip and antenna needed to communicate with the reader device are safely tucked away in the key fob. So, it’s virtually impossible to disrupt the system by attempting to copy or transfer information to a different key fob. This is an important advantage over passwords, which can be stolen or intercepted by malicious actors to steal identities, install malware, demand a ransom, or commit other cybercrimes.

Modern key fobs are incredibly reliable, even when used over long distances. In fact, one test found that a Toyota key fob wrapped in aluminum foil wasn’t able to transmit a signal to the car. This means that even if someone was to try to clone your key fob, it would be nearly impossible to do so from more than a few feet away.

These benefits of key fobs make them a great choice for business purposes, including access control systems and employee tracking. Using the right software, businesses can instantly block fobs that are lost or stolen and keep track of their employees’ arrivals and departures to generate accurate time sheets.


If your establishment uses key fobs, it is important to understand the technology behind them. This way, you can protect your business from theft. Fobs use radio frequency identification (RFID) to communicate with devices. RFID works like RFID Keyfob a barcode system, sending unique coded signals that match the specific microchip in your device.

This system allows you to control who can enter your business and when. For example, you can assign different identifiers to each employee. This allows you to track their entry and exit and evaluate employee performance. You can also use this information to prevent theft by limiting access to sensitive areas.

Another advantage of LF/HF blank RFID tag is that it’s easy to reprogram. You can change its information by touching a button on the fob. You can even create a master key fob that opens all doors, so you can get into your car or hotel room even if you lose the original.

Another potential disadvantage of key fobs is that thieves can steal their signals. This isn’t just a problem for cars, but also for passports and other forms of ID. Criminals can amplify the signal and capture your data from a distance. Fortunately, there are several ways to prevent this type of theft, such as purchasing a signal-blocking pouch. Some companies are also developing a special type of RFID fob that uses frequency-hopping technology, which makes it harder for thieves to steal your signal.

RFID Card Basics


RFID Card Basics

RFID Card is a type of contactless smart card that uses radio waves to identify a person. They can be used in a variety of ways to open doors, access information about logistics, or even track race results.

Using them is fast and convenient—all you need to do is tap or wave your card over the reader to make a payment. These cards are safe to use and have built-in protections, making theft difficult.

The chip

The chip inside an RFID card is small – it’s around the size of a grain of rice – but it is highly sophisticated and holds thousands of bytes of data. It also contains a coil of metal that converts radio signals into electrical power. This is crucial to enabling the chip to communicate with the antenna.

The antenna is what connects the chip to the reader, allowing the cardholder to transmit information without direct contact. It’s usually made of plastic, but premium RFID cards can use PVC, PET, ABS, or wood to withstand harsh physical conditions.

RFID technology is used for many different purposes, including access control and supply chain management. It’s also increasingly being used to make contactless payments, which are RFID Keyfob convenient and safe for consumers and businesses alike.

Another popular use for RFID is animal identification, with an implantable tag (also known as a transponder) being injected into the animal. This is used to track the location of livestock on large ranches or over rough terrain, and can be useful for preventing disease outbreaks such as mad cow disease.

While some people worry about RFID skimming, it’s important to remember that criminals must physically be within a few feet of the card for the technology to work. And while there are products on the market that can block or shield RFID signals, thieves would need to invest a lot of time and effort in order to compromise a person’s information.

The antenna

The antenna inside an RFID card is responsible for transmitting and receiving signals between the chip and the reader. It is typically a thin, metallic coil that is printed or etched onto the substrate of the RFID card. The substrate holds the antenna and chip together and provides structural support. Premium RFID cards use materials such as PVC, PET, ABS, or wood for added durability and longevity.

The polarization of the RFID antenna determines whether it radiates radio frequency energy in a linear or circular direction. Antennas with linear polarization only emit energy in a single direction, while circular antennas radiate in a counterclockwise or clockwise direction. RFID readers with multiple antenna ports can rotate between different antennas to maximize the reading range of an RFID tag.

Unlike barcodes, RFID tags can store large amounts of data that help retailers trace products as they move through the supply chain. This helps companies track and reduce theft and product loss. RFID tags also have a unique identification, which makes it difficult for criminals to steal data from them.

Special RFID-blocking wallets and sleeves are available, but these items generally aren’t necessary for security because the technology requires an obstruction-free environment to work. A more effective solution is to wrap a RFID-capable credit or debit card in foil, which blocks the signal and prevents fraud.

The power supply

Unlike the battery inside your phone, RFID chips don’t need an onboard power supply. Instead, they use a simple circuit to wake up the chip. It works a bit like a rectifier, but on a much smaller scale. When the chip is close enough to a reader, the antenna’s electromagnetic field activates it. The chip then uses a transistor to send a small pulse of energy over the air to the reader.

RFID technology is a huge benefit for inventory control. It can read many tags over a large area in less time than traditional 1D/2D barcode scanning requires. It also eliminates the need for a worker to have direct line-of-sight with each individual item.

The different types of RFID systems are often categorized by their operating frequency bands. There are low frequency (LF), high frequency (HF) and RFID Keyfob ultra-high frequency (UHF). Each one operates at a different radio wave wavelength and has its own advantages and disadvantages.

The most popular LF RFID format is EM-Marin. Other popular formats include HID Prox II, Motorola and Indala. Flipper can read most of these protocols and display the protocol’s name alongside the card ID if it is successful. It can even emulate a 125 kHz card for the primitive readers that use this dumb protocol. It is very common to see these cards in access control systems and in office intercoms.

The reader

When the card is placed in an RFID reader, the chip releases electromagnetic waves that are picked up by the antenna. The reader then converts those signals into information that can be sent to other systems. This process is what makes RFID cards so convenient and easy to use.

These readers are used in many different environments, including in libraries, events, and retail stores. Using these technologies can help businesses reduce costs and increase productivity. They are also more secure than traditional magnetic or barcode systems.

A great example of an RFID system in action is a library that uses RFID to manage book loans. Students can check out books with their RFID cards and can also return them on time. In addition, event organizers can use these cards to improve logistics by tracking all of the guests.

The RFID technology can also be used in manufacturing processes. By tracking products, the data obtained with this technology can be analyzed and used to eliminate waste and improve productivity. This includes reducing direct labor in non-productive tasks and improving scheduling and forecasting.

While the benefits of RFID cards are numerous, they are not without their shortcomings. Some of the most prominent concerns are security and privacy. These cards require proximity to the reader to transmit data, so they can be susceptible to theft if someone is able to get close enough. This is why it’s important to choose a company that offers security measures for their cards.