5 Differences Between RFID Cards and Proximity Cards (Simple Guide)
With such rapid evolutions in technology and security systems in the industry, it is vital to stay up to date with the latest in safety so that you can decide what works best for your business. When it comes to identity security and technological safety solutions for businesses, there are two prevalent technologies that you will find interwoven into so many different aspects of our everyday lives – from hotels to car keys, apartment buildings, leisure centres, outdoor events and credit or debit cards.
These two popular technologies are RFID cards and proximity cards, and they are often confused as they utilise similar systems and embody almost identical cards. There are, however, some important differences that we will break down in this simple guide. Below, discover the differences between RFID and proximity cards, how they work, and what benefits you can expect to see in your business. This should guide you as you endeavour to understand both technologies and identify what might work best for your operation.
What Are RFID Cards?
RFID stands for Radio Frequency Identification. An RFID card works using an electromagnetic field that identifies a correlating tag. The distance limit that an RFID field can identify will vary depending on the frequency deployed in the creation of the technology. This tag is how access can be granted in an entry system. It is typically programmed into a card, which is either active (with an included battery and large distance capacity) or passive (powered for use within a short range of radio signals from the matching reader).
How Do RFID Cards Work?
As touched on above, these cards use radio waves to see if the carrier has permission to pass through the gated area. This technology uses a unique serial number that has been loaded into the device, identifying whether access can be granted when scanned by the reader. The RFID system uses three parts: a reader, a tag and an antenna. Data is stored on a microchip that is attached to the antenna which makes up the tag. This chip transmits data to the reader and the reader will convert radio waves into data, allowing for communication with the internal system to signal whether the carrier can pass or not.
What Are Proximity Cards?
Proximity cards are contactless smart cards that can be identified and read without being inserted into a card reader. Proximity cards operate at a low frequency, around 12kHz, that is read-only in very close range (a few inches).
How Do Proximity Cards Work?
Proximity cards operate when in a small radius of their correlating card reader, using an embedded antenna to transfer information to the reader. They are widely used in identification systems for access control, as well as for gates, locks or doors. These cards have a limited amount of information that can be stored on their chip. Read times are fast, usually within a few seconds, and determine the carrier’s eligibility to pass through the prohibited area.
5 Differences Between RFID Cards and Proximity Cards
Discover 5 of the core differences between RFID cards and proximity cards:
Read Range
There is a large disparity in the range that RFID cards and proximity cards can read, and therefore operate. RFID cards operate much farther away and proximity cards only work at small distances. RFID cards are therefore more versatile and widely used.
Information Storage
RFID cards can store more information than proximity cards which makes them more widely operational in a larger range of markets. Stored data on cards can be a fundamental factor in businesses looking for a more sophisticated identification and security system.
Frequencies
RFID and proximity cards operate at different frequencies. Proximity cards function around 13.56mHz or high frequency, while an RFID card can operate at either low, high or ultra-high frequency for additional versatility.
Read/Write Capabilities
RFID are read/write capable whereas proximity cards are standard issue read only.
Line of Sight
RFID cards do not require a clear line of sight as they operate in wider distanced electromagnetic fields. Proximity cards also do not require sight, however, they function at much smaller distances.
In summary, RFID cards and proximity cards deploy a similar technology, however, RFID cards display more sophisticated functions that make them more versatile in modern business and event settings. The best way to determine which card option is the best fit for your business is by considering your unique expectations and needs. If you are searching for a simple, cost-effective one-and-done solution then a proximity card system will suit you well. For more advanced needs, larger-scale complex operational settings or desired data storage, RFID cards will likely suit your company better. Take the time to analyse your scale, size and operational expectations to help inform your decision-making process – and don’t forget that you will need to invest in a correlating reader, not just your cards.
For additional knowledge and guidance, don’t hesitate to contact the friendly team of identity card and security system professionals here at Identity People. Our experts will help you to invest in the most effective solution for your business and your needs, with custom-fit solutions and advice that sets you up for success, no matter your goals. Discover the range of printers, plastic cards and security accessories online or contact us today.
