mon678 WROTE:i want to know the difference between this two product...and can this RFID, read and write? what language that this RFID use ? i want to implement in ASP.net (C#).. please help...im new in this field
One is only the RFID reader, another one is application project using that RFID reader. It only can read. It is ready to be plug in to computer with serial port. Once the reader detect rfid tag, it will send the tag's id to computer. So, you only need to manipulate with comport in your programming in order to get the id.