Garmin GMI™ 20 Marine Instrument
SKU: 56882808915

Garmin GMI™ 20 Marine Instrument

Sale price$1755.00 Regular price$1950.00
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Ships within 48 hours · Estimated delivery Jul 7 - Jul 12

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Description

Garmin GMI™ 20 Marine InstrumentPerfectly Designed for Power and Sail Vessels Marine instrument display clearly shows depth, speed, wind and 100+ marine and vessel parameters Large, bright 4 color glass bonded lens display with anti glare finish Easy to read from a distance and 170 degree viewing angle Enhanced night time readability with backlight dimmer and full color or new red black or green black color schemes Enhanced daylight readability with new high contrast color option

Perfectly Designed for Power and Sail Vessels

  • Marine instrument display clearly shows depth, speed, wind and 100+ marine and vessel parameters
  • Large, bright 4” color glass-bonded lens display with anti-glare finish
  • Easy to read from a distance and 170 degree viewing angle
  • Enhanced night time readability with backlight dimmer and full color or new red/black or green/black color schemes
  • Enhanced daylight readability with new high contrast color option

The GMI 20 digital marine instrument display is perfectly designed for both power and sail vessels. Designed to clearly show depth, speed, wind and 100+ marine and vessel parameters, its large, bright 4” color display with extra large digits is easy to read at a distance and 170 degree viewing angle.

Set Sail with Ease

A glass-bonded finish lens on the GMI 20 prevents fogging and increases contrast. Daylight readability is enhanced with a high contrast color scheme. For enhanced night visibility, you have a choice of red/black, green/black or the normal night mode color scheme along with a dimmer control. Screens can be set to auto-scroll, cycling between pages automatically without your having to do a thing. This is especially advantageous to sailors as it allows you to install the unit(s) in a greater variety of locations on the vessel. Default profiles can be customized for powerboat, sailboat, fishing, engine/fuel, plus several other user-specified profiles. Power is supplied by the NMEA 2000® network.

In addition, the GMI 20 also features a dedicated race timer that counts down and counts up, with an internal beeper. Included are 2 trim snap piece cover options which allow you to match the GMI 20 with the new GPSMAP® 500/700 series, GPSMAP 8000 Glass Helm series or legacy Garmin chartplotters.


General

Dimension 110 x 115 x 30 mm (4.33" x 4.53" x 1.18")
Weight 247 g (8.71 oz)
Water rating IPX7
Display Type Color QVGA display
Display Size 4" diagonal
Display Resolution 320 x 240 pixels
Mounting Options Flat or Flush
Glass bonded display yes
Temperature range From 5° to 158°F (from -15° to 70°C)
Backlight  

Sensors

NMEA 2000 certified yes
NMEA 0183 Compatible yes

Electrical Features

Voltage range 9-16 V (from NMEA 2000)
Power Consumption

3 W max

Compass safe distance 209 mm (8.25")

Instrument Features

Audible Alarms yes
Auto-on yes
Vessel & marine parameters N/A
User Profiles  

 

In the Box

  • GMI™ 20*
  • Black trim piece snap cover
  • Protective cover
  • Flush mount gasket and hardware
  • NMEA 2000® T-connector
  • NMEA 2000 drop cable
  • Documentation
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
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]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 56882808915

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zach
Houston, US
★★★★★ 4
I could be a foot model now!!!
Size: 1 pair black L
I wear work boots almost all of the time so I bought these to put on my feet with salycylic acid to moisturize and try to get rid of a stubborn corn on the ball of my foot. It helped drastically after a few nights of lounging in the house with them on.
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Reviewed in the United States on May 11, 2026
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Cayman Watkins
Carnegie, US
★★★★★ 5
Nail Must Have💅🏽
I didn’t know I needed a double-sided nail mat until I owned one—and now I’m emotionally attached. This thing has officially become my manicure bodyguard, standing between my nails and the chaos of real life. One side catches polish drips like a champ, the other side keeps my tools from sliding away like they’re trying to escape responsibility. No more nail polish on the table, the couch, or my soul. Clean-up is so easy it almost feels suspicious. It lays flat, stays put, and makes me feel like a professional nail tech even though I’m painting my nails while watching TV and questioning my life choices. Bonus points for being reusable, washable, and silently judging me for painting my nails “just one more coat.” Five stars for saving my furniture, my sanity, and my dignity. If you do your nails at home, this mat is the real MVP. 💅✨
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Reviewed in the United States on January 7, 2026
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Kindle Customer
Carnegie, US
★★★★★ 5
As described
This was a gift for our niece. She loves to paint her nails, and we noticed similar mats at the nail salon we go to - so we got her an age appropriate nail "studio" to gift along with it. My friend thought it would be great for laying out when coloring and painting also, because its large.
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Reviewed in the United States on September 14, 2025
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Christina
Dallas, US
★★★★★ 5
I will buy this again
It was great i will buy this again
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Reviewed in the United States on July 25, 2025
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Sheena
Port Orchard, US
★★★★★ 3
Great
Great buy and great quality. Had to use tape to hold the edges down .
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Reviewed in the United States on November 14, 2025

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