MDI nTEGRITY SMART (Mifare?) Keypad Reader, 13.56 MHz ISO 14443 compatible Mifare? smart card readers with built-in 12 key numeric back lit keypad which allows you to read Mifare? smart cards and enter PIN numbers for higher security level of access control applications. The unit provides a read range of up to 4 inches and reads the serial number of the smart card