... 2Parity: none, even, odd, space, markBaud rate: 110~230400 bpsIndicator"Power", "ACT", "Online", "GPS"AntennaCellular: Standard SMA female interface, 50 ... .8V user card interface, 15KV ESD protectionPowerStandard 3-PIN power jack, reverse-voltage and overvoltage protectionPower InputItemContentStandard PowerDC 12V ... ( Non-condensing) gprs gps modem with rs232 rs485 for boat fuel monitoring and tracking