This is a low frequency (125 KHz) RFID Reader with Serial Output with at range of 8-12cm. It is a compact unit with built in antenna and can be directly connected to the PC using RS232 protocol. This product is a kind of play and plug device with a reading range of 8 to 10 cm and can be availed in the following specifications. RFID READER SPECIFICATIONS : Power Requirement:7.5 - 9 Volts @ 500mA(adapter) Voltage: 5 vdc Current: