Do phones affect hotel key cards?

In short, no. The magnetic strip on a hotel keycard (or on a credit card, for that matter) requires a considerably more intense magnetic field to erase or damage it than will ever be generated by an ordinary smartphone. They deactivate the magnetic strip key cards yes but not the new RFID key cards.



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The data stored in this key card can also include information such as check-in and check-out dates, guest name, and other details related to their stay at the hotel. Additionally, some hotels may store additional data such as payment information for services rendered during their stay.

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In summary, modern mobile phones are unlikely to deactivate hotel key cards. However, keeping them away from strong magnetic fields or devices producing strong electromagnetic radiation is still a good practice to ensure proper functioning. What happens when a hotel puts a hold on your card?

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Offering several layers of security, mobile key technology is the safest form of hotel access today. Physical keys and keycards are easily misplaced or stolen and can be used immediately to access a guestroom, but guest's mobile phones are unlikely to go astray.

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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.

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Without tampering too much with access card itself, the best way to keep it protected is to wear it like a employee badge in a plastic enclosure clipped to your chest. Your security guys will love it! A very simple way to protect a magstripe card is to put it in a paper or a plastic sleeve.

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Keeping the key in the sleeve with the room number on it isn't safe or prudent. There are a couple of easy ways to keep your card safe in case it is stolen, or if you lose or misplace it. Try to memorize your room number as soon as you check into your room. Keeping it “in your head” is sometimes the best way to go!

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Cards with scratches, exposure to debris, and other types of physical damage can be rendered unusable. Key cards may become inoperable when the magnetic stripe is demagnetized through exposure to magnets. Name tags, signs, and purse and wallet closures, and mobile phones are all potential sources of magnet exposure.

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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.

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