125khz rs232 interface id proximity card readers for proximity card reader system,id tk4100 em4100 rfid card reader for computer

output format:10 digit dec(defoult output format) (allow user to customize the output format) support cards:em4100,tk4100,smc4001 and compatible card operating system: win xp\win ce\win 7\win 10\liunx\vista\android