5.6-inch Multi-function display with NMEA multiplexer

1. Can accept most major NMEA0183 sentences
2. Provides 5 input ports and 2 output ports
3. 6 display modes show the input NMEA0183 sentences in digital and graphic modes.
4. Mix and combine all 5 input NMEA0183 sentences into 2 outputs
5. Weather alarm mode monitors the change of weather temperature and air pressure
6. 4 input ports are opto-isolated