Product Details
GMI™ 40 Wired Sail Pack – 43mm - 2 GMI 40 Marine Instruments, gWind™ Wired & GDT™ 43/GST™ 43 Transducers
GMI 40 is the compact, easy-to-use multipurpose marine instrument that provides real-time data from your compatible devices on its high-resolution touchscreen display.
Features:
- High-Resolution 4.3" touchscreen display
- Connects to the gWind sensor plus GDT 43 and GST 43 transducers
- Displays real-time wind, speed, depth, heading, engine, fuel data, and more from your compatible devices
- Integrates with NMEA 2000® and Garmin Bluenet™ networks
- Software updates via Activecaptain® smartphone app
- Wirelessly shares data to your Garmin marine smartwatch
SLEEK & STREAMLINED
This modern touchscreen display has an intuitive interface and edge-to-edge glass that complements the look of your Garmin chartplotters.
COMPLETELY INTEGRATED
As an NMEA 2000-certified device, your GMI 40 marine instrument integrates smoothly with compatible systems across your boat.
SIMPLE YET CUSTOMIZABLE
Flexible gauge sets and page layouts let you place the data you need exactly where you want it.
A NETWORK YOU CAN TRUST
Garmin BlueNet offers streamlined connectivity with compatible Garmin devices for full-system integration.
SEAMLESS DATA
See the shift before you feel it with easy-to-read real-time wind, speed, depth, and heading insights from your compatible devices.
SIMPLIFIED ENGINE DATA
See engine and fuel data from your compatible devices at a glance to easily monitor levels and optimize performance.
Specifications:
- Dimension: 4.53" x 3.58" x 1.18" (115 mm x 91 mm x 30 mm)
- Weight: 0.53 lbs (240 g)
- Water rating: IPX7
- Display Type: WVGA, IPS LCD
- Display Size: 4.3" diagonal; 3.68" x 2.21" (109 mm diagonal; 93.6 mm x 56.2 mm)
- Display resolution: 800 x 480 pixels
- Mounting Options: Flush mount
- Input: Touchscreen
- Glass-bonded display
- Temperature range: From 5° to 158° F (from -15° to 70° C)
- Voltage range: 9 to 32 Vdc
- Power Consumption: 2.5 W typical; 4.4 W max
- Compass-safe distance: 5.9" (150 mm)
- Garmin BlueNet network ports: 1
gWind™ Wired Wind Sensor
- Three-bladed propeller for more accurate True Wind Speed (TWS) in lighter air
- Twin-fin design gives a more stable True Wind Angle (TWA)
- Optical reading technique for superior performance at low wind speeds with excellent linearity
- GND™ 10 black box bridges NMEA 2000® data to Nexus Network and enables Garmin-compatible chartplotters to integrate with Nexus sail equipment and vice versa
- Easy plug-and-play installation between Nexus, Garmin chartplotters, NMEA 2000, and USB
The gWind transducer features twin-fin technology with a 3-bladed propeller for more accurate TWS in lighter air, while the twin-fin design gives a more stable TWA. The 3-bladed propeller, unlike a cup design, is always efficient. Combined with optic reading, this transducer provides superior accuracy at low wind speeds and also provides excellent linearity.
The included GND 10 black box bridge enables the Nexus Network and compatible Garmin chartplotters to share critical NMEA 2000 data. The GND 10 enables Garmin chartplotter owners to use Nexus sail equipment and vice versa. Available in 2 bundles (sold separately).
Specifications:
- Unit Dimension, WxH: 13.6" x 24" (345 mm x 610 mm)
- Weight: 260 g
- Cable Length: 25 m
- Waterproof: Yes (IPX6¹)
- Temp Range: From 5°F to 158°F (-15°C to 70°C)
- Storage Temperature: From -4°F to 176°F (-20°C to 80°C)
- Voltage Range: 9-16V
- Power Usage: 0.33W
- Typical Current Draw at 12 VDC: 28 mA
- Compass Safe Distance: N/A
- Accuracy Angle: Better than ±1.5°
- Speed: Better than ±3%
- Wind Speed Range: 0. 8-90 knots (0. 4-50 m/s)
- NMEA 2000® Load Equivalency Number (LEN): N/A
- Wireless Connectivity: No
GDT™ 43 Depth & Temperature Transducer
This thru-hull transducer can read water depth and water temperature. It can retrofit an existing Nexus and Silva 43 mm thru-hull transducer (TH43). When bundled with the NMEA 2000® adapter, the GDT 43 can connect directly to the NMEA 2000 network, and the information can be displayed on a compatible Garmin chartplotter or instrument display. This transducer has a 0-20 degree deadrise.
Garmin GST™ 43 Thru-hull Speed/Temperature Transducer
The GST 43 is a thru-hull transducer that can read water speed and temperature. The transducer can retrofit an existing Nexus 43mm thru-hull transducer (TH43).
Bundled with the GST 10, the GST 43 can connect directly to the NMEA 2000® network, and the information can be displayed on a compatible Garmin chartplotter or instrument display.
In The Box:
- 2 GMI™ 40 marine instruments (two if that version is selected)
- gWind™ wired wind sensor
- GND™ 10 black box bridge
- GDT™ 43 mm thru-hull depth and temperature transducer
- GST™ 43 mm thru-hull speed and temperature transducer
- Field-installable mast cable connector
- Mast bracket
- Mast cable with female connector (25 m)
- For the NMEA 2000® network: 2 m backbone/drop cable (3x), 5 T-connectors, power cable and terminators
- Mounting hardware
- Documentation
Specifications:
- Instrument Function: Multifunction
- Screen Size: 4.3"
- Shape: Rectangular
Brochure (pdf)

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