The GMI 20 has a 4-inch laminated glass display and shows depth, speed, wind, engine data and temperature as well as over 100 marine and boat-specific data. The GMI 20 was developed as the successor to the GMI 10, but also offers extensive functionalities on a larger, brighter display. The new user interface is even easier and more intuitive to use. - Large, bright 4 QVGA colour display - LED backlight - Laminated glass prevents fogging and tarnishing - High-contrast display - 47mm high numerical display - Various colour and night modes - New red/black, green/black display - NMEA 0183 & 2000 compatible - Power supply via NMEA 2000 - Supports 10Hz sensors - User-defined data fields - User-defined profiles