The GMI 20Marine instrument display clearly shows depth, speed, wind and 100+ marine and vessel parameters.The GMI 20 digital marine instrument display is designed for both power and sail vessels. GMI 20 clearly shows depth, speed, wind and 100+ marine and vessel parameters. Its large, bright 4" diagonal color display with extra large digits is easy to read at a distance, and 170 viewing angle means you can see it from just about any cockpit location.Glass bonded display with multiple color palettes: A glass-bonded finish lens on the GMI 20 prevents fogging and increases contrast. Daylight readability is enhanced with a high contrast color scheme. For enhanced night visibility, you have a choice of red/black, green/black or the normal night mode color scheme along with a dimmer control.Automatic scrolling: Screens can be set to auto-scroll, cycling between pages automatically without your having to do a thing. This is especially advantageous to sailors as it allows you to install the unit(s) in a greater variety of locations on the vessel. Default profiles can be customized for powerboat, sailboat, fishing, engine/fuel, plus several other user-specified profiles. Power is supplied by the NMEA 2000 network.Dedicated racing timer for sailboats: In addition, the GMI 20 also features a dedicated race timer that counts down and counts up, with an internal beeper.Match your other Garmin displays: Included are two trim snap piece cover options which allow you to match the GMI 20 with the GPSMAP 500/700 series, GPSMAP 8000 Glass Helm series or legacy Garmin chartplottersKey FeaturesMarine instrument display clearly shows depth, speed, wind and 100+ marine and vessel parametersLarge, bright 4" diagonal color glass-bonded lens display with anti-glare finishEasy to read from a distance and 170 viewing angleEnhanced nighttime readability with backlight dimmer and full color or new red/black or green/black color schemesEnhanced daylight readability with new high contrast color optionIPx7 waterproof for cockpit mounting in a wet environmentFull color 320 x 240 pixel screenWhat's in the BoxGMI 20Black trim piece snap coverProtective coverFlush