Workplace glossary

What is RFID?

Definition & practical guide1 min read

RFID uses radio waves to identify a tag without contact or line of sight. In buildings it is the technology inside most access cards and fobs, and increasingly inside asset tags on equipment and furniture.

On this page

Low-frequency 125 kHz cards are the older, easily cloned generation. High-frequency 13.56 MHz cards, including NFC and MIFARE, support encryption and are what any current installation should be using.

Because RFID tags can be read at a distance, they are also used for asset tagging: knowing which monitor is in which room without anyone walking the floor with a clipboard.

Common questions

What does RFID (Radio Frequency Identification) mean in simple terms?

RFID uses radio waves to identify a tag without contact or line of sight. In buildings it is the technology inside most access cards and fobs, and increasingly inside asset tags on equipment and furniture.

How does RFID (Radio Frequency Identification) affect property and running costs?

Low-frequency 125 kHz cards are the older, easily cloned generation. High-frequency 13.56 MHz cards, including NFC and MIFARE, support encryption and are what any current installation should be using.

How does RFID (Radio Frequency Identification) work in practice?

Because RFID tags can be read at a distance, they are also used for asset tagging: knowing which monitor is in which room without anyone walking the floor with a clipboard.