... , WIFI or WLAN 2.4G RF-UIM/RF-SIM, Mifare1(S50, S70), SIMpass USB, Wiegand, RS232 ports RF SIM RFID Attendance Control IDT30 ... platform for attendance control management. Specification ModelIDT30Identification Method2.4G RF-UIM/RF-SIM SIMpass S50 S70Identification Speed<0.2sIdentification Distance2.5-7cm ... for WinCEPower DC 12V / 1.5ABattery1700mAh/3.7V Li-MH RF SIM RFID Attendance Control