GNX™ 21 Marine Instrument

Part Number 010-01142-10

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Feature
Function
Specs
In The Box
Update
Accessories

Marine Instrument with Inverted 4” LCD

Large, easy-to-read white or color digits on a black background for high visibility in low-light or darkness; choose from 7 customizable backlight colors¹
Glass-bonded display with anti-glare lens avoids fogging
Fully customizable user profiles for sail or power boating to display most important marine and vessel data
Low power consumption (25 mA) with 350 mW (no backlight)/400 mW (mid-level backlight)
5 display configurations plus gauge and graph mode to display depth, speed, wind and 50+ marine and boat parameters

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.

¹Color backlight is not visible in daylight.

Easy-to-read Display Unique high-contrast hybrid display features large, easy-to-read digits scalable up to 36 mm tall. Offers excellent clarity in direct sunlight, at dusk, or at night. The dot-matrix section can show additional details and/or graphical information.
Glass-bonded Display Glass-bonded display helps prevent fogging, and the anti-glare lens finish increases visibility.
Customizable Color Background Choose from 7 different backlight colors, or even create a customized color, to achieve the screen that provides optimum readability for you.
Customizable User Profiles Fully customizable user profiles allow you to choose from 5 available display configurations for sailboat or powerboat user-profiles: single, dual and triple function, plus gauge and graph mode to display wind, depth and speed data, or customize the pages to display the marine and boat data that is most important to you.
Auto Scroll Set your display to automatically cycle between pages at a speed you set for convenient, hands-free operation.
Low Power Consumption Perfect for sailors who want to sail for long intervals without having to run a motor or generator to charge batteries. The GNX 20 uses only 25 mA with 350 mW daytime usage, requiring no backlight and just 400 mW with a mid-level backlight setting at night.
NMEA® 2000 Monitor more than 50 marine and boat parameters, including GPS speed, water depth and temperature, wind direction, and wind speed from the NMEA 2000 bus. You can also add a NMEA 0183 device using the optional 7-pin bare-wire power/data cable.

General
Dimension	110 x 115 x 30 mm (4.33" x 4.53" x 1.18")
Weight	230 g (8 oz)
Water rating	IPX7
Display Type	Inverted LCD, monochrome
Display Size	83 x 60 mm; 101.6 mm diagonal (3.3” x 2.4”; 4.0” diagonal)
Mounting Options	Flat or Flush
Glass bonded display	yes
Temperature range	From 5° to 158°F (from -15° to 70°C)
Sensors
NMEA 0183 Compatible	yes
Electrical Features
Power Consumption	0.35 W (day); 0.4 W (night)
Compass safe distance	209 mm (8.25 in.)
Instrument Features
Auto-on	yes
User Profiles

GNX 21
Trim piece snap cover
Protective cover
Flush mount gasket and hardware
NMEA 2000® T-connector
NMEA 2000 drop cable
Installation instructions
Documentation

GNX™ 21 Marine Instrument

GNX™ 21 Marine Instrument

General

Sensors

Electrical Features

Instrument Features