Furuno FI70BW Basic Wind System With 30M CableThe Furuno FI70BW Basic Wind System delivers reliable wind speed and direction data through an economical package designed for sailors and powerboaters seeking straightforward helm instrumentation. Wind Transducer: FI5001 analog masthead sensor with wind angle accuracy better than 10 and wind speed accuracy better than 5% at 20 kt. Digital Display: FI70 unit that presents apparent wind direction for clear helm reference. Data Converter: IF NMEAFI