C-MAP 4D NA-D930 Lake Superior

• 3D Chart View - The world has three dimensions.
  When you add the 4th dimension of time - meaning consistent, periodic
  updates - you combine the most detailed 3D height and depth worldwide
  database with a continuous update process to give you a personalized
  navigation experience with up-to-date data for safe navigation.
  
• High-Resolution Satellite Imagery - See the real world on your
  screen.
  C-MAP 4D includes a navigational perspective with high-resolution coastal
  imagery overlaid on the most accurate and up-to-date vector data, plus
  thousands of extraordinary photos for the most popular marinas and areas of
  interest.
  
• Digital Raster Charts - Innovate tradition.
  With raster charts, you have an additional reference source for navigational
  awareness. Get "at-a-glance" information using the nautical paper charts
  overlaid on the multi-dimensional shaded relief to have a new visual
  experience.
  
• Easy Routing - Automatically create a route.
  Enter start and end points along with specific boat parameters and
  automatically receive waypoints of the shortest route; highlights potential
  hazards and displays varying levels of alerts for each segment of the route,
  allows you to manually adjust the route.
  
• Guardian Alarm - An extra layer of safety.
  When activated, Guardian Alarm performs an automatic forward-scanning check
  for obstacles. Use the feature as an added backup to alert you should you
  head toward a potentially harmful object.
  
• Detailed NavAids
  
• Route Check
  
• Detailed Marina Charts
  
• C-Marina Ports Database
  
• Multi-Language Capability
  
• Dynamic Tides & Currents
  
• Photos & Diagrams
  
• Depths & Land Elevations
  
• Perspective View

Additional Specs (If Applicable):

• Card Format = MicroSD/SD