But what if you have NMEA wiring to a Multi-Function Display (MFD)? The Air Link™ accessory can receive the Bluetooth transmissions from the masthead, and has NMEA wiring connectors. The Air Link can also retransmit on wifi all NMEA wired data, to connect your wired devices to your smartphone/tablet. Aqua Map on Android just added the wifi connection to the Air Link this month.
The Wind Instrument RB™ has a Removable Battery in the nose cone, where it works as a counter-balance. The pointer is carbon fiber to reduce weight. The transmission range is 280 feet (85m) for boats of all sizes, whether you are launching a keelboat (above), trailerable sailboat (no 12v battery required), or multihull (below), even with a rotating mast.