Product Details:
The GPSMAP 178C Sounder Is A New-generation Fully Integrated Chartplotter And Powerful Sonar, Offering The Same Brilliant Sunlight-readable Color LCD, Powerful Features, And Simple Interface As The GPSMAP 172C - All In A Compact, Value-priced Console That Leaves Fish Nowhere To Hide.It Comes Standard With A Built-in Worldwide Marine Basemap And Accepts MapSource BlueChart Offshore Marine Cartography - Featuring Detailed Depth Contours, Inter-tidal Zones, Wrecks, Navaids, And Many Other Points Of Interest. For Small-water Anglers, The GPSMAP 178C Sounder Is Compatible With MapSource Recreational Lakes With Fishing Hot Spots - Featuring Fishing Areas, Boat Ramps, Marinas, And Hazards For Hundreds Of Popular U.S. And Canadian Lakes. Pre-programmed Data Cards Can Be Easily Inserted Into The Slot On The Front Of The Unit.