The AIS Class B B951 is the next generation high power (5W SOTDMA) class B transceiver, with integrated GPS antenna.

The AIS Class B B953 is the next generation high power (5W SOTDMA) class B transceiver, fully integrated with built in VHF antenna splitter and integrated GPS antenna.

The B350 Em-trak Class B AIS transceiver is a weather & waterproof AIS with an integrated GPS antenna and increased range and reporting frequency with its high power 5W transmitter.   Last one left at $650 which is well below cost.

The Em-trak B400 Class B AIS transponder is a waterproof AIS Class B transceiver in a standalone unit. Featuring built in Wi-Fi, 5W output power and more.

Picosense have designed and built a panel mounted AIS transponder silent mode switch.