It can effectively avoid the magnetic disappearance or information leakage of bank cards, second-generation resident ID cards, information cards and social security cards. Which can effectively prevent the magnetic layer of the bank card from being damaged and falling off. With the protection of magnetic layer, your bank card can be protected from magnetization.

Professional degaussing card sets, card packs (can hold more than a dozen or twenty pieces) and degaussing wallets are very convenient, and the principle is the same as radiation protection. There is also a second-generation ID card with the function of reading information, and the information on the ID card is likely to be stolen by criminals. The degaussing card sleeve, card package and wallet also have the function of preventing the second-generation ID card information from being stolen.

Extended data

Anti-degaussing method

1, when buying a wallet, there are usually small hard cards from several brands. Don't throw them away! When playing cards, except that the cards can't be on the same interlayer, put a card of this kind on the side with magnetic stripe to play the role of spacing.

The bank has special card sets, how many can you use?

3. It's not bad to use ID card as the interval.

Degaussing principle

The strong magnetic field generated by high-frequency electromagnetic waves will magnetize the credit card, which will disorder the recorded information and lead to the invalidation of the bank card.

The recorded information of bank cards and bankbooks are stored on the magnetic stripe on the back. The strong magnetic field generated by high-frequency electromagnetic waves generated when the mobile phone works will magnetize the credit card, making the recorded information disordered, thus leading to the invalidation of the bank card. At the same time, some people put mobile phones, bank cards and other items together in their bags, which can easily lead to the bank cards being "degaussed".

In addition, if the magnetic strips of two bank cards overlap, they are likely to be demagnetized at the same time. In addition, some medical inspection equipment such as the magnetic hidden buckle of ladies' handbags, card readers on buses, nuclear magnetic resonance instruments, etc. will also cause the bank card to be magnetized.

Baidu encyclopedia-bank card degaussing