RFID Tag Card – 125KHz
This RFID tag comes in a credit card sized package, which is commonly used in Access Control, Presence Sensing etc. This RFID tag operates in 125KHz RF range and have a 32 bit unique ID which is not re-programmable. It doesn’t require any power supply or battery. It takes power and clock for its operation from the electromagnetic field produced by the RFID Reader using an internal coil.