The Garmin GNX 20 Marine Instrument is a compact, glass-bonded display that brings critical vessel data to life with high-contrast digits. Designed for both sail and power boating, it delivers clear readings day or night and connects seamlessly with NMEA 2000 networks for a streamlined helm setup.
Key features at a glance:
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High-contrast glass-bonded display with an anti-glare lens for excellent daytime and nighttime readability, with digits scalable up to 36 mm
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7 customizable backlight colors to match your helm and improve visibility in any conditions
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5 display configurations plus gauge and graph modes to show depth, speed, wind, and 50+ marine and boat parameters
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Fully customizable user profiles tailored for sail or power boating, displaying exactly what you need
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Auto-scroll feature rotates through data screens for hands-free operation
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Low power consumption 25 mA (0.35 W day / 0.40 W night with backlight
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Glass-bonded display with anti-glare coating for rugged durability and reliable readability
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NMEA 2000 compatible with included T-connector and drop cable for easy integration on your network
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Flexible mounting options include a low-profile flush mount or an optional flat mount for a clean glass-helm look
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Weather-ready and compact physical size: 110 x 115 x 30 mm with a 3.3" x 2.4" display (4.0" diagonal); IPX7 water rating
Performance details that matter on the water:
- Displays depth, speed, wind, and more than 50 marine and boat parameters at a glance
- Color backlight is not visible in daylight, ensuring optimal readability in bright sun or low-light conditions
What’s in the box:
- GNX 20 instrument
- Trim piece snap cover (2)
- Flush mount gasket and hardware
- NMEA 2000® T-connector
- NMEA 2000 drop cable
- Installation instructions
- Documentation
Upgrade your helm with the GNX 20 for fast, decisive readings that keep you in control on every voyage. Its combination of advanced display technology, low power draw, and flexible mounting makes it the ultimate glass-helm solution for cruising, fishing, and competitive sailing alike.
| General |
| PHYSICAL DIMENSIONS |
110 x 115 x 30 mm (4.33" x 4.53" x 1.18") |
| DISPLAY SIZE |
(3.3" x 2.4"; 4.0" diagonal) |
| DISPLAY TYPE |
Standard LCD, monochrome |
| WEIGHT |
230 g (8 oz) |
| WATER RATING |
IPX7 |
| MOUNTING OPTIONS |
Flat or Flush |
| POWER CONSUMPTION |
0.35 W (day); 0.4 W (night) |
| GLASS BONDED DISPLAY |
Yes |
| TEMPERATURE RANGE |
From 5° to 158°F (from -15° to 70°C) |
| Electrical |
| COMPASS-SAFE DISTANCE |
209 mm (8.25 in.) |
| Instrument Features |
| AUTO-ON |
Yes |
| USER PROFILES |
Yes |
