Garmin GST 43 Thru-Hull Speed Temp Transducer 010-04283-00 Silva Nexus NX2 GST43Garmin GST 43 Thru Hull Speed Temperature Transducer #010 04283 00 PERFECT! Works perfectly, fully tested with guarantee. ***** The GST 43 is a thru hull transducer that can read water speed and temperature. The transducer can retrofit an existing Nexus 43mm thru hull transducer (TH43). Bundled with the GST 10, the GST 43 can connect directly to the NMEA 2000 network, and the information can be displayed on a compatible Garmin chartplotter or