بطاقة Rfid 6 ~ 10m شريحة Alien H3 المستخدمة لنظام مواقف السيارات وإدارة شؤون الموظفين B.2
The 125kHz proximity technology has been around since 1990 – it's basically a physical RFID chip and when you present it to an EMI field the antenna inside is excited and responds with a signal that is identified by the reader.
