Garmin GPSMAP1222XSV 12in Comb Basemap No TransducerMeet the Garmin GPSMAP 1222xsv a powerful 12 inch chartplotter and sonar all in one designed for boaters who want a flexible, expandable navigation and sonar system. This model ships without a transducer, so you can tailor your sonar setup with transducers that fit your boat and waters (transducers sold separately). Display & interface: 12 inch color display with a rugged keypad interface and a multifunction control knob for fast, one handed