The Garmin GNX 20 is a high-quality marine instrument display that provides sailors with essential data such as speed, depth, wind, and navigation information. This device is designed to withstand harsh marine environments and features a large, easy-to-read LCD screen with customizable color schemes. The GNX 20 is compatible with a range of Garmin sensors and instruments, making it an ideal choice for sailors who want to stay informed and in control while out on the water. To protect this valuable device from scratches, smudges, and other damage, our website offers a range of screen protectors specifically designed for the GNX 20.