Simrad NAIS-400 Boat Marine Class B AIS Transceiver Navico Lowrance B&G NMEA2000Simrad NAIS 400 Boat Marine Class B AIS Transceiver Navico Lowrance B&G Brand new with warranty. You will receive what you can see in the photos. The Simrad NAIS 400 is a Class B AIS receiver, optimally suited for use in areas with heavy shipping and busy ports. Thanks to its compact design, light weight, waterproof housing and low power consumption, the NAIS 400 is easily integrated with any chartplotters or multifunction displays NSS, NSE, NSO, as