The GMI 20 digital marine instrument display is designed for power and navigation. It is designed to clearly display depth, speed, wind direction and more than 100 ship parameters. Its extra-large bright 4-inch color color display can be easily read from a distance with a 170-degree viewing angle. The glass-bonded veneer lens on GMI 20 prevents fogging and improves contrast. The high-contrast color scheme enhances the readability of daylight. To enhance night vision, you can choose red/black, green/black or regular night mode color scheme and dimmer controls. The screen can be set to auto-scroll-no need to perform any action to automatically cycle between pages. This is particularly advantageous for sailors because it allows you to install the equipment in more places on the ship. The default profile can be customized for motorboats, sailboats, fishing, engine/fuel and some other user-specified profiles. The power is provided by the Nmea 2000 network.