Gpsmap 531 Series Gps Receiver (Gpsmap 531; Without Dual-Beam Transducer)
Large, Ultra-Bright 5 Diagonal Qvga Display 234 X 320 Pixels Preloaded With Charts For Over 14,000 Us Lakes & Navigable Rivers Built-In High-Sensitivity Gps Receiver 2 Nmea 0183 I/O Ports Streamlined User Interface Makes It Simple To Select Modes & Features Optional Bluechart G2 Vision Cards Provide Enhanced Navigation Features Like Auto Guidance, Satellite Imagery, 3-D Mariner’S Eye Secure Digital Card™ Slot Dim: 5.9H X 6.4W X 2.9D
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