The Garmin GPSMAP 278 is a versatile marine GPS navigation system designed for boaters and fishermen. It features a large color display that is easy to read in any lighting conditions, and it comes preloaded with detailed coastal maps and charts. The GPSMAP 278 also includes a built-in sonar system that allows you to see underwater structures and fish, making it an essential tool for anyone who spends time on the water. To protect the screen of your GPSMAP 278 from scratches, smudges, and other damage, we offer a range of high-quality screen protectors that are specifically designed to fit this device.