Lowrance NAIS-500 Class B AIS with GPS-500 or Lowrance NAIS-500 Class B AIS with NSPL-500 and GPS-5 Reduce Risk of Collision with Lowrance Using Automatic Identification System (AIS), Lowrance's transponders automatically broadcasts a vessel's identification, position, course and speed and receives surrounding vessels' info to prevent collisions in congested shipping lanes and ports. Both the compact NAIS-500 and NAIS-400 draw minimal power and network with HDS Series fishfinders and chartplotter combo units as well as Lowrance VHF radios.
The AIS700 from Raymarine is a Class B Automatic Identification System (AIS) transceiver designed for use with Raymarine multifunction navigation display systems. As a Class B AIS transceiver, the AIS700 not only receives broadcasts from other vessels, it also transmits your own boat's information too helping you to be seen on other vessels' systems.