GNX™ 21 Marine Instrument with Inverted DisplayMarine 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 colors
- 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.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 Digits
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 21 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.Compatible Devices:
- GPSMAP® Series
- GPSMAP® 8500/8530 Black Box
We are pleased to announce our new shipping promotions below. These rates apply to your entire order*!
||6 to 10 Business Days
||1-6 Business Days
|3 Day Shipping
||3 Business Days
|2 Day Shipping
||2 Business Days
|1 Day Shipping
||1 Business Day
*These offers apply to in-stock orders to the lower 48 states only. We cannot include shipments to Alaska, Hawaii, Puerto Rico or any other US Territory. Please call or email us for rates to these locations. Oversized packages are also excluded for 3, 2, and next day shipping. Items that are shipped freight are also excluded. Because we have many different warehouses around the United States we reserve the right to choose the carrier. Signature service can be requested for $3 extra.
We speak French, German, and Italian!
Please use the shipping calculator for an accurate shipping quote.
We ship via DHL International and USPS. Shipping insurance is optional but recommended and costs $5 for all international orders. Items that can fit in a flat rate envelope are shipped via flat rate service. Please keep in mind that USPS Flat Rate Priority Mail does not include detailed tracking and is not covered by insurance to certain countries. For a list of these countries please email us.
International order processing takes approx. 3-5 business days.
Many countries impose their own customs, duties, tariffs, taxes, etc... on items imported from the USA. We do not cover those costs.
The shipping transit times are approx. as follow:
|DHL International Economy:
||5-7 business days (trackable)
|USPS Express (EMS) Mail:
||1-2 weeks (trackable)
|USPS Global Priority Mail:
||2-3 weeks, (trackable)
|USPS Flat Rate Priority Mail:
||4-5 weeks (not trackable)