SKU: 66309952897

Garmin GNX™ 21 Marine Instrument w-Inverted Display - 4"

Sale price$192.99 Regular price$214.43
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Description

Garmin GNX™ 21 Marine Instrument w-Inverted Display - 4"GNX 21 Marine Instrument with Inverted Display 4" 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 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

GNX™ 21 Marine Instrument with Inverted Display - 4"

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 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.

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

WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.


Manufacturer : Garmin
Manufacturer Part No : 010-01142-10
UPC : 753759120962
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
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  • Delivery to the USA:
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
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SKU: 66309952897

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4.1 ★★★★★
Based on 22 reviews
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Courtney
Los Angeles, US
★★★★★ 4
Great product...wish you had color options
My dogs love these balls, but I wish you could choose the color. This is my dog's favorite toy. He can play tug of war with his siblings, and the ball usually lasts for quite awhile. Considering they are usually pretty destructive puppers, this is a minor miracle. But, I can't just pick his favorite color and get it delivered. I have to play roulette, and pray that his color is the one that I get when I open the box. If they can allow us to choose the color(s) that we want, then this review will be upgraded to 5 stars.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 17, 2023
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Verified Purchase
Nancy
New York, US
★★★★★ 5
A silent toy that still holds a dog’s interest
We bought this large size for our Rottweiler- but it was our 45# dog who fell in love with it. Cooper is 16, has kidney disease, dementia and loss of muscle coordination; so, it was an absolute joy to watch him engage with this toy. His foot went through the ball once, but he figured it out. He pushes it with his nose, and tries to squeak it. He “talks” to it. We haven’t heard that in a long time. It’s light enough that he can lift it - and it rolls and bounces nicely. For him it’s perfect. Our Rottie seems to understand that it’s his toy. Now, that’s love and understanding.
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Reviewed in the United States on May 5, 2026
N
Verified Purchase
NatureGirlM
Cuba, US
★★★★★ 5
A big hit!
Our Rottie loves these! I wanted something like the Jolly Ball but that is soft for inside the house. She's had a lot of fun with this, picking it up, tossing it, playing soccer, etc.
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Reviewed in the United States on May 15, 2026
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Verified Purchase
catherine scarborough
Waukegan, US
★★★★★ 1
Ball fading color on outside
Ball was delivered May 2, today is May 6 , blue color is fading on the outside of ball I am concerned about the product if it is healthy for my pup. I have two other balls smaller, purchased at local pet store and red and aqua colors did not change . Be aware..tried to email company with no luck….hopefully they will see this and respond
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Reviewed in the United States on May 6, 2026
S
Verified Purchase
Sandra Miller
Houston, US
★★★★★ 5
Great interactive toy
Size: One Size
My overall rating is a 5 stars because our dog absolutely loves the toy! It is a great tug toy and "launching" toy for fetch... Although she doesn't quite grasp the return part of fetching. She'd rather play "case me if you want it back!" I wish I had a better video but didn't think of making one until we were pretty much done playing. But you can see she's been playing hard up until this clip and is still wanting to play more... I'm the one exhausted. The rope part of this toy is what takes playing fetch to another level. Give it a good wind-up and let it fly! The weight of the ball carries it really far and very fast! More than I expected based on other toys one purchased. The first launch almost went over back wall of our yard! Skye didn't mind cause the rope made it easy for her to find it in the ivy. She loves throwing it around up in the air and flinging it around like cats throw their toys around. The ONLY issue is, of course is the durability. This toy is meant to be an interactive toy only. Once you're done playing, put it away if you want it to last. Especially if you have a dog that chews everything. It IS well made and of nice material, but no toy will survive her chewing skills. She'd have the rope chewed off in minutes. So it's up to the owner to keep this toy safe! If your dog isn't a chewer....I envy you and this toy will last a really long time! I would definitely recommend this toy for water or beach play as well. It's a big ball, but the rope and the groves in the ball make it very easy for her to grab. And if you don't want to use the rope to play, it fits into the groves around the ball and hooks into place. But honestly, we will never use that feature, the rope is the best part in my HER opinion! Definitely recommend and I'm going to buy more! I'm not thrilled with the price but everything is expensive these days,and if it's taken care of, it will last a long time.
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Reviewed in the United States on September 11, 2022

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