GPS Devices

New Eagle FishMark 320 Portable Fish / Depth finder! Garmin GPSMAP 531S Combo - Includes dual beam transducer Features a large ultra-bright 5" QVGA display along with an improved high-speed digital design for faster map drawing and panning speeds Plus, these waterproof units have a high-sensitivity internal GPS receiver, so mariners will always know their opsition on the water. They are ready to go with built-in cartography for inland U.S. waters (over 14, 000 lakes) and Garmin's proven easy-to-use interface designed to help you navigate the waters with ease. Features and Specifications: * Large, ultra-bright 5" diagonal QVGA display, 234 x 320 pixels - over 800 nits of brightness * Preloaded with charts for over 14, 000 U.S. lakes and navigable rivers * Compatible with GXM 51 for XM Satellite Radio and XM WX Satellite Weather * Built-in high-sensitivity GPS receiver * High-speed processor for fast screen redraws and smooth panning * Two NMEA 0183 I/O ports * Backlit keypad for easy operation in low light condi