Featuring a powerful dual-frequency transducer that clearly illustrates depth contours, fish targets and structures whether your customer is fishing in freshwater or off the coast, the Garmin 010-00762-01 GPSMAP 541 Series Marine GPS Receiver is also NMEA-2000-certified for easy connectivity with sensors, instruments and future marine offerings. Garmin 010-00762-01 GPSMAP 541 Series Marine GPS Receiver: * Ultra-bright 5" diagonal QVGA display * 234 x 320 pixels * NMEA 2000 certified for seamless integration with the Garmin marine lineup * Preloaded worldwide marine base map * Compatible with GXM 51 for XM Radio and XM WX satellite weather * Built-in high-sensitivity GPS receiver * Optional BlueChart g2 Vision cards provide enhanced navigation features like auto guidance, satellite imagery and 3D mariner"s eye * View and 3D fish eye view * Secure Digital Card slot