Garmin GPSMAP 441s 4-Inch Waterproof Marine GPS and Chartplotter with Sounder
http://www.amazon.com/Garmin-GPSMAP-Waterproof-Chartplotter-Sounder/dp/B002KMSVMK%3FSubscriptionId%3DAKIAIOIGGZP7DQY55UUQ%26tag%3Dws%26linkCode%3Dsp1%26camp%3D2025%26creative%3D165953%26creativeASIN%3DB002KMSVMK
ULTRA-BRIGHT 4″ DIAGONAL QVGA DISPLAY; 240 X 320 PIXELS MORE THAN 800 NITS OF BRIGHTNESS; NMEA 2000 CERTIFIED; PRELOADED WORLDWIDE MARINE BASEMAP; COMPATIBLE WITH GXM 51 FOR XM SATELLITE RADIO & XM WX SATELLITE WEATHER; BUILT-IN HIGH-SENSITIVITY GPS RECEIVER; HIGH-SPEED PROCESSOR FOR FAST SCREEN REDRAWS & SMOOTH PANNING; STREAMLINED USER INTERFACE MAKES IT SIMPLE TO SELECT MODES & FEATURES; POWER OUTPUT: 500W (RMS), 4000W (PEAK TO PEAK), DUAL FREQUENCY; DEPTH: 1,500 FT/ 500 M (DUAL FREQUENCY); DUAL FREQUENCY TRANSDUCER 50KHZ (45), 200KHZ (10) FOR MAXIMUM SALTWATER PERFORMANCE; PATENTED TRANSOM/TROLLING MOUNT TRANSDUCER; ULTRASCROLL HIGH REP RATE SONAR PROVIDES FAST SCREEN UPDATES; AUTOGAIN TECHNOLOGY ENHANCES TARGET VISIBILITY; SEE-THRU TECHNOLOGYSHOWS WEAK & STRONG RETURNS SIMULTANEOUSLY; WATER TEMPERATURE LOG GRAPHICALLY RECORDS WATER TEMP DATA; A-SCOPE; WHITELINE; ADJUSTABLE DEPTH LINE HELPS GAUGE DESIRED FISHING LEVELS & BOTTOM CLEARANCE; SPLIT ZOOM DISPLAY OFFERS A CLOSER LOOK AT FISH TARGETS & BOTTOM STRUCTURE; 2X, 4X & BOTTOMLOCK ZOOM; ADJUSTABLE KEEL OFFSET; ALARMS FOR FISH SIZE, SHALLOW WATER, DEEP WATER & LOW BATTERY; SINGLE SECURE DIGITAL CARD SLOT FOR BLUECHART G2 VISION CARDS, & SAVING WAYPOINTS, ROUTES & TRACKS TO A SECURE DIGITAL CARD; BACKLIT KEYPAD FOR EASY OPERATION IN LOW LIGHT CONDITIONS; DIM: 5.7″L X 5W X 2.
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