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 What is RFID?

Definition: Radio-frequency identification (RFID) refers to the use of radio-frequency electromagnetic fields to transfer data from a tag to a reader with the purpose of automatic identification and tracking.


Tags require no battery are called “Passive” which are powered and read at short ranges via magnetic fields. For tags use a local power source and emit radio waves are called “Active” which read at much longer range.


There are numerous applications for RFID technology and can be classified into the following categories: Aerospace, Defense, Consumer Packaged Goods, Health Care, Logistics, Manufacturing, Packaging, Pharmaceutical and Retail.

Regarding the application of Hong Kong RFID products, it can be classified into three categories: People, Asset, and Environment Control. Read More.

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