In the next section, we will explore the reading mechanism and discuss how RFID readers interact with RFID key fobs to enable access control. They offer a higher level of control and can be especially beneficial in commercial settings such as offices that receive a lot of foot traffic making it necessary to monitor who enters and leaves the premises. The SYWAN RFID Copier, on the other hand, is the most versatile. In addition to unencrypted 125kHz cards, it can also copy partially-encrypted cards with the aid of a Windows PC. There’s a bit more of a learning curve here, depending on what you’re copying. Then again, you can copy most 125kHz and 13.56MHz cards. Mutiread means when a reader is active, you can litterally read about 1700 tags in under 10 seconds. Catherine O'Connor, Mary (2004-07-12). "Gen 2 EPC Protocol Approved as ISO 18000-6C". RFID Journal . Retrieved 2011-07-07.

While RFID key fobs offer numerous advantages, they also have certain limitations that should be considered. Here are some of the key limitations associated with RFID key fobs: The more common RFID are the tags you see here and there. They come in a wide ranges of styles, uses and frequency.ASTM D7434, Standard Test Method for Determining the Performance of Passive Radio Frequency Identification (RFID) Transponders on Palletized or Unitized Loads In many countries, RFID tags can be used to pay for mass transit fares on bus, trains, or subways, or to collect tolls on highways. ISO/IEC 18092 Information technology—Telecommunications and information exchange between systems—Near Field Communication—Interface and Protocol (NFCIP-1)

Pete Harrison (2009-07-28). "EU considers overhauling rules for lost air luggage". Reuters . Retrieved 2009-09-09. ASTM D7435, Standard Test Method for Determining the Performance of Passive Radio Frequency Identification (RFID) Transponders on Loaded ContainersThe use of RFID to prevent mix-ups between sperm and ova in IVF clinics is also being considered. [91] Modulation: The RFID reader modulates the radio waves it emits with a specific pattern or encoding. This modulation allows the RFID key fob to distinguish between the reader’s signals and other ambient signals present in the environment. It ensures accurate and reliable communication between the key fob and the reader. Human chips more than skin-deep | Tech News on ZDNet". News.zdnet.com. Archived from the original on 2010-03-24 . Retrieved 2010-04-24.

ISO/IEC 14443: This standard is a popular HF (13.56MHz) standard for HighFIDs which is being used as the basis of RFID-enabled passports under ICAO 9303. The Near Field Communication standard that lets mobile devices act as RFID readers/transponders is also based on ISO/IEC 14443. Williams, Christopher (2007-10-22). "Schoolkid chipping trial 'a success' ". Theregister.co.uk . Retrieved 2013-09-03.The Project EV Pro Earth is the biggest charger on our list and the least pleasing to the eye, but it is available with RFID as standard. You scan to charge at the bottom of the charger where the card symbol is, or where the circle is on some models: Rosová, Balog, and Šimeková., Andrea, Michal, and Žofia (2013). "The use of the RFID in rail freight transport in the world as one of the new technologies of identification and communication". Acta Montanistica Slovaca. 18 (1): 26–32. {{ cite journal}}: CS1 maint: multiple names: authors list ( link) RFID for timing races began in the early 1990s with pigeon racing, introduced by the company Deister Electronics in Germany. RFID can provide race start and end timings for individuals in large races where it is impossible to get accurate stopwatch readings for every entrant. [ citation needed] Zewe, Adam (2021-11-18). "Pushing the limits of electronic circuits". MIT News . Retrieved 2021-11-18. RFID enabled fobs and cards can operate on different frequency ranges with most proximity cards and RFID key fobs having to be very close to the system for the data to be transmitted.