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Recently, Xiaomi Environmental Chain launched a new product for home security. This product is an Aqara smart door lock NFC card that costs 49 yuan (approximately US $ 7). In fact, the Aqara smart door lock card is operated by a small key card, allowing you to open doors that have a smart lock. This card has a microprocessor inside that has first class security. The Aqara card measures 42 by 26 by 3.5 mm and weighs 4 grams. Through its data algorithm and storage capabilities, it can not be copied and provides security at the financial level. Each Aqara Smart Door Lock NFC card has an EAL5 + security chip to ensure the security of key information. It also uses precise encryption code to prevent any duplication. And if someone loses their original card, the user can easily delete the credits stored in the smart door lock to prevent unwanted access to the house or other places. However, users can reactivate the card if they find it or use it with new information. Currently, the Aqara ...