The Garmin GST 43 through-hull transducer provides data on speed through the water and temperature.
It can be used to retrofit an existing Nexus 43mm swingarm for through-hole mounting (TH43).
The transducer is available in a standard version or for the NMEA2000 network. The NMEA2000 bundle (GST 43 + GST 10) connects directly to the NMEA2000 network. The information can then be displayed on a compatible Garmin chartplotter or instrument display.