Lowrance LCX - 37C GPS Chartplotter / Fishfinder: Single or dual-bean sonar function and advanced GPS in W-I-D-E 8.4" full color! Super-size that display, Partner. The Lowrance LCX-520CM lets you see both your location and the location of the fish on a whopping 8.4" full-color display. Your choice of single or dual-beam sonar and all the GPS functions you demand. Display: 8.4" (21.3 cm) diagonal 600V x 800H pixel resolution 16-bit color SolarMax TFT display; Advanced cold cathode screen and keypad backlighting; Multiple full and split-screen sonar / GPS options; Programmable color palette; 6 sonar display color choices; Sonar: Choice of dual-frequency (50 / 200 kHz) or single-frequency (200 kHz) Skimmer transducer with built-in temp sensor; 8,000W peak-to-peak (1,000W RMS) power; Depth range to 3,000 ft (915 m) and beyond; FlashGraf LCD flasher+sonar graph with COLORLINE; Adjustable ping speed automatically engages HyperScroll for locating fish targets at higher boat speeds; FasTrack vertical flasher bar; Standard sonar features: Advanced Signal Processing (ASP), COLORLINE, Advanced Fish Symbol I.D., FishTrack, multi-zoom options, sonar alarms, backup memory, and more; GPS / Mapping: Precision 12-parallel channel GPS with WAAS receiver... 1,000 waypoints / 1,000 event markers / 100 routes and 100 savable plot trails / 10,000 points per trail; Expanded, built-in enhanced background map of the continental U.S, and Hawaii with over 3,000 lakes with depth contours and additional features; Optional MapCreate Accessory Pack includes MapCreate USA Topo CDs, USB memory card reader, and one memory card (sold separately); Compatible with optional plug-&-play Lowrance FreedomMaps, Fishing Hot Spots Pro, LakeMaster Pro Maps, NauticPath USA, and Navionics electronic charts (sold separately); One-touch MOB (Man Overboard); 42 different graphic icons to mark your favorite spots; 40 map zoom ranges, 0.04-4,000 miles; Plus: NMEA 2000 compatible LowranceNET networking; Advanced