Detailed Product Description BU-353,GPS Receiver,GPS tracker,USB GPS Receiver,Laptop accessaryThe BU-353 GPS Receiver 's incorporating the latest SiRF Star ... . LED indicator for GPS fix or not fix.LED OFF: Receiver switch offLED ON: No fix, signal searchingLED Flashing: Position fixed11 ... level, Output voltage level: 0V~2.85V Baud rate: 4,800 bpsOutput message: NMEA 0183 GGA, GSA, GSV, RMC, VTG, GLL ...