Do magnets affect hotel key cards?

Hotel key cards can be affected by magnets. Hotel key cards typically use magnetic stripe technology to store information that is read by card readers to grant access to hotel rooms. The magnetic stripe contains encoded data, and exposure to strong magnetic fields can potentially damage or erase the information stored on the card.

If a hotel key card comes into contact with a strong magnet, such as those found in certain electronic devices or accessories, it may result in the card becoming demagnetized. When a key card is demagnetized, it may no longer function properly, and guests may experience difficulty using it to access their rooms.

To avoid potential issues with hotel key cards:

Keep Away from Magnets: Avoid placing the key card near strong magnets, including those in purses, wallets, or bags that contain magnetic closures.

Separate from Electronics: Keep the key card separate from electronic devices, as some devices with strong magnets, such as certain smartphones or tablet cases, can potentially affect the card.

Avoid Direct Contact: Prevent direct contact between the key card and items like magnetic money clips, key holders, or other magnetic objects.

If a hotel key card stops working or malfunctions, guests should contact the hotel front desk for assistance. Hotels are usually equipped to quickly reprogram or replace malfunctioning key cards for their guests. It's always a good practice to store key cards in a location where they are less likely to come into contact with strong magnetic fields