What is dual frequency RFID?
The dual frequency RFID card consists of UHF+HF or UHF+LF or HF+LF. So this kind card can satisfy two protocol two frenqency bands. Normally LF/HF reading range is 1-10cm. UHF reading range is 2cm-60cm.
What is a major advantage of dual-frequency over single frequency?
Take the management of Wuliangye liquor, for instance. It is designed UHF+HF bands.
High frequency is beneficial for consumers to use NFC smartphones to check the authenticity of products; Ultra high frequency is used by dealers for intelligent management in logistics and warehouses. So the dual band design can benefit for both.