Lowrance LMS-522C iGPS 5-Inch Waterproof Marine GPS and Chartplotter with Sounder Combines a sonar with GPS navigation for fast, accurate temperature, speed, and distance readings and dependable fish finding capabilities Includes a built-in custom background map and a high-speed, transom-mount 200 kHz skimmer transducer with built-in temp sensor and up to 60 degrees Offers a five inch, 256-color 480 x 480 SolarMAX TFT color display for superb sonar target detail and separation, exceptional chart definition Compatible with NMEA 2000 networking; five-pin Ethernet expansion port for radar, video and satellite radio Easy-to-use system helps you find fish in dazzling color