Class-B ApprovedMeets with the strict regulations set out for this class of Automatic Identification System. Send & ReceiveThe NAIS-400 ensures that you are seen and can see on the water by sending a signal to other vessels with your navigational data, whilst you receive data from other vessels. This allows you to plan any necessary avoidance manoeuvres well in advance. Integrated SolutionNetworks with your NSS, NSE and NSO chartplotter / multifunction display and your VHF for a fully integrated system. Multiple Networking ConnectionsCompatible with NMEA2000