GNX 21 Marine Instrument
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GNX 21 Marine Instrument

White or Color Digits on a Black Background - Shows Depth, Speed, Wind and 50-plus Marine and Boat Parameters
By: Garmin

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The easy-to-read GNX 21 marine instrument has an inverted display with white or color digits on a black background that clearly shows depth, speed, wind and 50-plus marine and boat parameters. Its glass-bonded display with anti-glare lens coating provides excellent daytime and nighttime readability with high-contrast digits scalable up to 36 mm.
The GNX 21 is the first glass-bonded marine instrument with a combination of directly driven LCD segments and a dot-matrix field to display graphical information. Its low power consumption — (25 mA) with 350 mW (no backlight)/400 mW (mid-level backlight) — is perfect for use on sailboats, and provides a valuable instrument for cruising and fishing. Fully customizable user profiles display wind, depth and speed data. Plus, the GNX 21 includes an auto-scroll feature that rotates through data screens for hands-free operation. It can be installed with the included low profile flush mount or an optional flat mount for the ultimate glass helm solution and custom look for your boat. (Color backlight is not visible in daylight.)
• Physical dimensions 4.33" x 4.53" x 1.18"
• Voltage range 9-16 V (from NMEA 2000)
• Mounting options Flat or Flush
• Display size, WxH 3.3” x 2.4”; 4.0” diagonal
• Water rating IPX7
• Weight 230 g (8 oz)
• Display type Inverted LCD, monochrome
In the Box
• GNX 21
• Trim piece snap cover
• Protective cover
• Flush mount gasket and hardware
• NMEA 2000® T-connector
• NMEA 2000 drop cable
• Installation instructions
• Documentation

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