Lowrance 000-12635-001 Hook-3X Sonar, W/ 83/200 XDCR Led-backlit 3 inch color display with detailed 320 x 240 resolution that's easy to see in full sunlight & from wide viewing angles Broadband sounder detail easily identifies fish targets, bottom contour, structure detail, bottom hardness, thermoclines & more Advanced signal processing (asp) reduces the need to manually adjust settings to see fish, structure & bottom detail more clearly Dual-frequency 83 or 200kHz operation helps maximize view beneath boat 83kHz sonar operation provides up to 60deg of conical coverage ideal for displaying largest fish arches & searching large areas