Garmin Gfl 10 Fluid Level Nmea 2000 . These new NMEA 2000 adapters bring any helm into the digital age. Simple to install and very easy to set up the NMEA 2000 adapter takes signals generated by today s traditional analog gauges and sensors and converts that data into NMEA 2000. The data can then be broadcast over NMEA 2000 to the Garmin GMI 10 Multifunction instrument. The combination of these adapters along with a Garmin GMI 10 will bring even the most out of date dashboard into a glass digital helm.