What are the requirements for a card reader to realize carkey function?

[zhangxixun]

To realize carkey function, what conditions do card readers need and what aspects of hardware will be measured?

[zhangxixun]

How far is carkey's sensing distance? Can 3920B be satisfied?

[Enkey]

Sensing distance depends on Car reader and smart devices or Tag, generally it can reach up to 5cm; ST25R3920B sensing distance could be more than 5cm using ST reference antenna.

[Enkey · Accepted solution]

No special hardware design is needed; you can contact to local FAE for more information and support.

[zhangxixun]

Thanks Enkey ,  There are no other questions.