Unlocking a door with a card is a convenient and secure way to gain access to a building or room. These systems are often used in commercial and residential buildings, as well as in hotels and other hospitality settings.
Card readers are typically installed near the door and are connected to a computer system that controls access to the building. When a card is swiped through the reader, the system checks the card’s credentials against a database of authorized users. If the card is valid, the system will unlock the door.