GARMIN GDT43 Thru-Hull Transducer – NMEA 2000

GARMIN GDT43 thru-hull transducer / NMEA2000 is used to measure water depth and temperature, allowing your compatible Garmin device to display accurate data directly on screen.

The transducer is mounted through the hull and provides stable and accurate measurements while sailing. With NMEA 2000 integration, data can be shared directly across your network, giving both chartplotters and instruments access to the same information.

This makes it an important part of your navigation setup if you want reliable data on the conditions beneath your boat.

⚡ Advantages

• Measures both depth and water temperature
• Stable and precise thru-hull measurement
• Direct integration with NMEA 2000 network
• Data displayed on compatible Garmin chartplotters and instruments
• Thru-hull solution provides high accuracy
• Suitable for both recreational and sailboats

📊 Specifications

• Type: Thru-hull transducer
• Measurements: Depth and temperature
• Frequency: 200 kHz
• Max. depth: up to approx. 275 meters (depending on conditions)
• Mounting: 43 mm thru-hull
• Cable length: approx. 6 meters
• Hull thickness: approx. 6–42 mm
• NMEA 2000: Yes (via adapter)
• Voltage (adapter): 9–16 V

📦 Contents of the package

• GDT43 thru-hull transducer
• NMEA2000 adapter
• Cable
• Mounting parts

💡 Tip from SejlStrøm:
This model is perfect for permanent installation for precise depth measurement. Combine it with other NMEA 2000 sensors to get a complete overview of your boat's data in one place. If you have any doubts about the setup, we'll be happy to help.