... fingerprints; 3000 users 3. Use fingerprint/password/RFID card 4. TCP/IP,USB,USB memory,RS485 Technical Parameters: ItemsSpecificationDimension171mm×130mm ... N or 1:1Anti-static Strength< 15KVCommunication ProtocolTCP/IP, USB, USB memory, RS-485LanguageChinese, English, Arabic,Spanish,etcTemperature-100 ... attendance records directly in the machine Biometric Time Recorder & Door Access Controller OTA750