Garmin GNX 20/21

Garmin’s new GNX 20/21 marine instruments are very similar to the GMI 20 but boasts low power consumption and fully customizable displays. During the day they consume 350mW with no backlight and 400 mW during the night when a mid-level backlight is needed. The 4 inch, dot-matrix screen provides a crisp, high contrast display for easy viewing in any environment. The GNX 20/21 also features an anti-glare lens for readability in sunlight and is glass-bonded to prevent fogging. The GNX 21 offers an inverted display with white or colour digits.

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Auto-scroll cycles pages for hands-free operation
NMEA 2000 with over 50 marine and boat parameters
Customizable user profiles
Can be flush or flat-mounted
Flush mount gasket and flat-mount kit sold separately

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