Hotel key cards work by using various technologies such as RFID and magnetic stripe. The information encodes inside the key card can only be read by RFID readers or magnetic readers.
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HF 13.56 MHz RFID ISO Cards - Personnel BadgesCommonly known as employee badges or hotel room cards, ISO Cards of HF 13.56 MHz are commonly used for access control & security needs. Available with both ISO 15693 and 14443 NFC memory chips and with private labeling, custom art.
RFID ProtocolEvery smart access card you have is built on what is known as radio frequency identification, or RFID for short. Basically, RFID is the function that allows devices to communicate with each other via radio waves, using them to transmit information back and forth.
Although there are many types of smart cards, when it comes to hotel smart cards, there are two main types: magstripe and RFID cards. Magstripe cards are the most common type of hotel key card, and they work by storing data on a magnetic stripe that is read by a door lock for hotels.
Personnel at the hotel desk will imprint the user information at check-in and usually set a time limit for its use until checkout. The key card door lock is triggered once the magnetic strip is read and verified by the hotel door card reader.
Experts say you also don't need to worry about turning your key card in at the end of your stay; the information expires so the hotels can reuse the cards.
HF 13.56 MHz RFID ISO Cards - Personnel BadgesCommonly known as employee badges or hotel room cards, ISO Cards of HF 13.56 MHz are commonly used for access control & security needs. Available with both ISO 15693 and 14443 NFC memory chips and with private labeling, custom art.