🏷️ Basic Information Identification Make: Garmin Model: GPSMAP 400/500 Series Manufacturer: Garmin Ltd. Product Category: Marine GPS Navigator 📋 Manual Details Document Info Manual Type: Owner User Manual Language: English 🔧 Maintenance Care And Upkeep Recommended Service Interval: Regular cleaning and software updates Warranty Period: Varies by region and purchase date (refer to warranty documentation) 📄 Specifications Device Characteristics Device Type: GPS Navigation Device Intended Use: Marine Navigation Power Details Power Source: External Power Source Voltage: 12-24 VDC Battery Type: External Battery Pack (Optional, not included) Connectivity Data Ports: NMEA 0183, SD Card Slot Display Display Type: Color TFT Display Display Size: 4-inch to 5-inch diagonal (model dependent) Cartography Supported Cartography: Garmin BlueChart g2, BlueChart g2 Vision Gps Receiver Gps Receiver Type: High-sensitivity GPS User Interface Control Method: Button Interface Environmental Protection Water Rating: IPX7 📄 Operational Details Usage And Performance Operational Range: Dependent on chart coverage and GPS signal acquisition Operating Conditions: Marine environments Charging Time: Not Applicable (uses external power)