GPS Express provides a feature rich interface to serial NMEA-0183 protocol data and works with most NMEA-0183 devices, including GPS Receivers. GPS Express is available in three versions. Standard version displays the title, value, and units for each parameter. Manual,Scan operation. Navigation buttons. Manual,automatic sentence triggering. Comport indicators. Accepts third-party multi-level sentences. System date,time. Date,time stamp. Elapsed.