ICOM Class B AIS Transponder w/Color Display Class B AIS Transponder w/GPS navigation function features a 4.3 in color LCD, NMEA 0183-HS, NMEA 2000, and USB connectivity. Receives both Class A and B AIS signals. 12/24VDC operation, IPX7 waterproof, includes external GPS antenna w/mount. MFG# MA-510TR