Description: Simrad NAIS-300 Class B AIS (Automatic Identification System) black box transponder has been engineered to provide advanced AIS functionality to a new generation of Simrad multifunction displays. Simrad NAIS-300 Class B AIS can be easily integrated with compatible systems from other Navico brands (B&G, Northstar and Lowrance) via NMEA0183, NMEA2000 and SimNet – as well as with systems from other manufacturers.