The Garmin GPSMAP 278C is a marine GPS chartplotter designed for boaters and fishermen. It features a high-resolution color display and preloaded detailed coastal maps, as well as the ability to add additional maps via a memory card slot. The GPSMAP 278C also includes sonar capabilities for fish finding and depth soundings. It is a durable and reliable device that can withstand harsh marine environments, making it an essential tool for any boater or fisherman. Our range of screen protectors for the GPSMAP 278C helps to keep the device's display safe from scratches, smudges, and other damage, ensuring that it remains in top condition for years to come.