RFID (Radio frequency) products are widely used nowadays in our daily life and in most cases, it makes our life more convienient and secure. For instance, we use various kinds of plastic card to identify ourselves.. In company, we have staff cards and as a person, we have ID card..We also have attendance or access card to do time attendance and access control. The access control system includes: access controller (the control center) and RFID card reader (the verfication model ), RFID cards for verification.. For detailed, please kindly visit website: *****