Convenient sonar module for MarCum RT-9 ice fishing fish finder
8/20 dual-beam system for superior presentations
Connects to RT-9 GPS for full feature set of Digital Series Systems
One Year System Warranty.
The MarCum® RT-9 Sonar Module Ice Ducer brings powerful, dual-beam 8/20 sonar to your RT-9 GPS display for the full feature set of MarCum’s Digital Series Systems. Supercharge your ice-fishing technologies with this acclaimed sonar module for more successful angling, taller tales, and more brag-worthy trophy photos. Where ordinary ice sonar falls shorts, the MarCum RT-9 Sonar Module Ice Ducer delivers.