Garmin Afficheur multifonctions GMI 20 - 4'' - photo 2

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Garmin

010-01140-00

GMI 20 Multifunction Display - 4"

The Garmin GMI 20 multifunction display is an essential navigation instrument for recreational boaters. It combines a wide range of features, including GPS navigation, chartplotting, weather monitoring, power management, and NMEA 2000 communication. With its 4-inch touchscreen color display, it offers excellent readability, even in full sunlight. It is compatible with NMEA 2000 and NMEA 0183 networks, allowing easy integration with a wide range of sensors and systems.

Retail priceBenefit from the professional rate

£349.20 GBP

£349.20 GBP ~~£441.26 GBP~~

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In stock

Free pickup point from €150 in France
Pickup at Skysat possible

Custom installation

Trust Skysat to install the equipment on board

Request a quote

Installers near you

thanks to our network of approved installers

Find an installer

Support service

Opt for additional installation assistance

Technical specifications

IP rating	IPX7
Operating voltage	9 to 16
Product height	110
Product width	115
Wired network	NMEA 2000,NMEA 0183
Backlight color	White
Housing color	Black
Max power consumption	1.35
Product depth	30
NMEA 2000 Load Equivalency Number (LEN)	3
Mounting type	Flush-mount / On table (optional kit)
Operating temperature	-15 to 70
Bus compatibility	NMEA 2000,NMEA 0183
Wireless connectivity	NMEA 2000, NMEA 0183
Certifications	CE,NMEA 2000,FCC Part 15 Class B,IPX7
Display type	Color LCD
Screen size	4
Touchscreen	No
Wired input	NMEA 2000,NMEA 0183
Bonded LCD	Yes
Package contents	GMI 20 display, black trim cover, protective housing, flush-mount gasket and hardware, NMEA 2000 T-connector, NMEA 2000 drop cable, documentation
Race timer function	No
Available alarms	Shallow depth, Deep depth, Surface temperature, Remaining fuel, Engine status, Apparent wind speed, True wind speed, Apparent wind angle, True wind angle, Battery voltage, Anchor drift, Anchor chain length, Docking distance
Alarms	Anchor, Depth, Wind, Voltage, Engine, Fuel
Anti-glare coating	Yes
Cable length	2
Lens material	Glass
Material	Plastic
Mounting options	Flush, Flat
Network load	3
Night mode	Yes
NMEA 2000 certified	Yes
Product weight	0.247
UV resistance	Yes
Tension d'alimentation	12
Weight	0.25

Detailed description

The Garmin GMI 20 multifunction display is an essential navigation instrument for recreational boats and sailboats. It combines a wide range of features, including GPS navigation, chartplotting, weather monitoring, energy management, and NMEA 2000 communication. With its 4-inch color touchscreen, it offers exceptional readability, even in full sunlight. It is compatible with NMEA 2000 and NMEA 0183 networks, allowing easy integration with a wide range of sensors and systems. The GMI 20 features a high-sensitivity GPS, an accelerometer, and a gyroscope for precise navigation, even in challenging conditions. It also includes an anti-fog screen for optimal visibility in all circumstances. This model is an excellent choice for boaters seeking a versatile and reliable navigation instrument. **Box contents:** GMI 20 display, mounting bracket, NMEA 2000 cable, user manuals.

Documentation

Type	Nom
	EN - Flush Mount Template - GMI 20 Multifunction Display - 4''
	EN - Flush Mount Template - GMI 20 Multifunction Display - 4''
	EN - Installation Instructions - Multifunction Display GMI 20 - 4''
	EN - User Manual - GMI 20 Marine Instrument Display - 4''
	EN - Quick Start Manual - GMI 20 Marine Instrument Display - 4''
	EN - Important Safety and Product Information - GMI 20 Marine Instrument Display - 4''

Expert opinion

Pol CONIN

Digital Manager

« The benchmark for NMEA 2000/0183 data centralization »

The GMI 20 display is a standard fixture in the Garmin ecosystem and an extremely reliable solution for centralizing navigation data. Its dual compatibility with NMEA 2000 and NMEA 0183 makes it a strategic choice for both new installations and refits of older systems. Its main advantage lies in its energy efficiency: with a consumption of only 1.35 W and a LEN of 3, it minimizes the impact on the boat's electrical balance, a critical factor on sailboats. The bonded glass screen ensures complete absence of fogging and perfect readability even in full sunlight. It is a robust instrument, easy to integrate, and provides a clear, customizable interface for all critical vessel data. This processor guarantees instant helm responsiveness while optimizing the actuator's energy consumption.

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GMI 20 Multifunction Display - 4"

£349.20 GBP

£349.20 GBP ~~£441.26 GBP~~

Frequently Asked Questions

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What are the main data points the GMI 20 display can show?

The GMI 20 display is designed to centralize and display over 100 marine and vessel parameters. Here are the most common data points:

Navigation: Speed, depth, GPS data (COG/SOG), position, heading. Wind: Wind speed and angle (true and apparent). Engine: Engine parameters and fuel level. System: Battery status, water temperature. It can also display route information, waypoint data, and cross track error.

Is the GMI 20 screen easily readable in direct sunlight?

Yes, the GMI 20's 4-inch color screen is specifically designed for optimal readability in all conditions. It features a bonded glass lens with an anti-glare finish that significantly improves daytime visibility and prevents fogging.

Is the GMI 20 display compatible with NMEA 2000 and NMEA 0183 networks?

Yes, the GMI 20 offers dual compatibility. It is NMEA 2000® certified and can also connect to devices using the NMEA 0183 protocol. This allows it to integrate easily with most navigation systems, whether recent or older.

Can I customize the information displayed on the screen?

Absolutely. The GMI 20 is very flexible. It offers pre-configured profiles for powerboating, sailing, or fishing. Additionally, you can create your own fully customized profiles to organize and display the data that is most useful to you from over 100 available parameters.

Is the device waterproof?

Yes, the GMI 20 display has an IPX7 protection rating. This means it is protected against accidental immersion in water up to 1 meter deep for 30 minutes, ensuring its reliability in harsh marine conditions.

What are the possible mounting types for the GMI 20?

The GMI 20 offers two installation options for seamless integration into your dashboard. It can be installed as a flush mount or a flat mount. Mounting templates are provided to facilitate cutting and installation.

Can I connect sensors from brands other than Garmin to the GMI 20?

Yes, as long as the sensors are NMEA 2000 certified, they can communicate with the GMI 20 and display their data. NMEA 2000 certification ensures interoperability between equipment from different manufacturers.

Is it possible to configure audible alarms on the GMI 20?

Yes, the GMI 20 allows you to set up multiple audible alarms for increased safety. You can configure alerts for:

Depth (high and low)Anchor watch (anchor drag)Wind (speed and angle)Battery voltageWater temperatureFuel levelEngine status

Can the GMI 20 display my engine data?

Yes, if your engine is NMEA 2000 compatible and connected to the network, the GMI 20 can display its data. It supports standard PGNs (Parameter Group Numbers) for engine parameters, such as RPM, temperature, pressure, etc.

How is the GMI 20 display powered?

The GMI 20 display is powered directly by the NMEA 2000 network. It does not require a separate power cable. The required input voltage via the NMEA 2000 network must be between 9 and 16 Vdc.

Does the screen have a night mode?

Yes, the GMI 20 has a "Color Mode" setting that allows you to switch between a day color display, optimized for bright light, and a night color display to avoid glare in the dark.

What is the safety distance to maintain from a magnetic compass?

To avoid any interference with your steering compass, it is recommended to install the GMI 20 display at a minimum distance of 209 mm (8.25 inches) from any magnetic compass.

What are the pre-configured usage profiles on the device?

The GMI 20 comes with several pre-configured profiles to suit your activity. These profiles organize the most relevant instrument pages for each use:

Sailboat: Displays apparent wind, heading, speed, etc. by default.Powerboat: Highlights GPS speed, position, distance to waypoint.Fishing: Prioritizes the display of GPS speed, water temperature, and depth.Customizable profiles are also available.

Can the GMI 20 synchronize with other Garmin displays?

Yes, thanks to the "Network Sharing" function on the NMEA 2000 network, the GMI 20 can share settings such as color mode (day/night) and backlight brightness with other compatible devices on the network. This allows you to adjust the display of all your screens at once.

Does the "Auto Power" function turn on the screen automatically?

Yes, the "Auto Power" function allows the GMI 20 display to turn on automatically as soon as the NMEA 2000 network is powered up. This simplifies the startup of your onboard electronic system.

How to install the GMI 20 display?

Installing the GMI 20 display is relatively straightforward. Carefully follow the installation instructions provided in the user manual (available on our website: https://www.garmin.com/support/manuals/gmi20/). It is recommended to prepare the mounting surface, cut the hole using the provided template, and connect the NMEA 2000 cables according to the instructions. Ensure the display is securely fastened to the surface using the supplied screws. For optimal installation, we recommend consulting a professional if you are unfamiliar with marine installations.

Is the GMI 20 display compatible with my NMEA 2000 system?

Yes, the GMI 20 display is designed to work with NMEA 2000 systems. It is compatible with most NMEA 2000 sensors and instruments, allowing you to centralize and display navigation data from multiple sources. It is compatible with NMEA 0183 protocols via an optional data cable (not included). Check the list of compatible sensors on our website: https://www.garmin.com/support/compatibility/

Is the GMI 20 display waterproof?

Yes, the GMI 20 display is IPX7 certified, meaning it is waterproof up to a depth of 1 meter for 30 minutes. However, we recommend always using the supplied sealing gaskets to protect the display from moisture and water spray. Do not submerge the device in water.

Is the GMI 20 display touchscreen?

No, the GMI 20 display is not touchscreen. It is a color display with control buttons for navigating menus and operating the device. It is designed for hands-free use while sailing.

How can I configure the alarms on the GMI 20 display?

You can configure the alarms on the GMI 20 display via the setup menu. Each alarm (depth, water temperature, wind speed, etc.) can be customized by setting the threshold value and the alert type (visual, audible). Consult the user manual for detailed instructions on alarm configuration.

Is the GMI 20 display compatible with marine charts?

No, the GMI 20 display does not perform cartography directly. It displays navigation data from sensors connected to the NMEA 2000 network. For charting, you will need a device compatible with the NMEA 2000 protocol, such as a GPS or a chartplotter (not included).

Is the GMI 20 display shock-resistant?

The GMI 20 display is designed to withstand the shocks and vibrations encountered during navigation. However, it is recommended to handle it with care to avoid damage. It is also recommended to protect it from extreme shocks.

What are the dimensions of the GMI 20 display?

The dimensions of the GMI 20 display are 110 x 115 x 30 mm (without the cover) and 115 x 120 x 35.5 mm (with the cover). The weight of the display without the cover is 247 g and with the cover is 283 g.

Can the GMI 20 display be used with different types of sensors?

Yes, the GMI 20 display is compatible with a wide range of sensors via the NMEA 2000 network. It can receive data from speed, direction, depth, water temperature, wind, and other sensors. Specific compatibility depends on the sensors used.

How can I troubleshoot NMEA 2000 connection issues?

If you are experiencing NMEA 2000 connection issues, verify that all cables are properly connected and that the connections are secure. Ensure the NMEA 2000 power isolator is correctly connected and functional. Also check that the sensors and GMI 20 display are compatible with the NMEA 2000 protocol.

Is the GMI 20 display waterproof?

Yes, the GMI 20 display is IPX7 certified, meaning it is waterproof up to a depth of 1 meter for 30 minutes. However, we recommend always using the supplied gaskets to protect the display from moisture and water splashes. Do not submerge the device in water.