What is an RFID card used for?

An RFID card is used for wireless identification and authentication. It contains a small chip and antenna that communicate with a reader using radio waves.

Here are some common uses of RFID card:

Access Control

1. Building entry: Employees tap cards to enter offices or restricted areas.
2. Hotel room keys: Contactless cards unlock rooms.

Payment Systems

1. Contactless payments: Cards used for fast transactions in stores or transit systems (like Oyster cards in London or MetroCards in NYC).
2. Loyalty cards: Stores track points or rewards via RFID.

Inventory and Asset Tracking

• Used in warehouses or retail to track products or assets without scanning each item individually.

Libraries

• For checking out books and automating inventory.

Healthcare

• Patient ID cards or wristbands to access medical records quickly and securely.

RFID cards come in two main types:

1. Passive (no battery, powered by the reader’s signal)
2. Active (has a battery, can transmit signals over longer ranges)

• RFID Card Printer