Garmin Airmar DST820 Depth/Speed/Temp Thru Hull Smart Transducer
This plastic thru-hull NMEA 2000 smart transducer combines precise depth, speed and temperature signals with attitude sensing for heel/trim and pitch/roll data. It can read depths to 100 m (330 ft) and offers fast 5 Hz water speed signal output for smoother visualisation on compatible chartplotters or other displays.
Wireless Bluetooth connectivity makes it easy to manage calibration of sensor data through the AIRMAR Cast app interface. And the 235 kHz sensor operating frequency helps prevent mutual interference with other echosounder devices on the vessel. The transducer’s wide, fan-shaped beamwidth of 10 x 44 degrees enables it to find bottom even when installed on steep deadrise hulls or heeling sailboats.
- Transducer frequency: 235 kHz
- Transducer power: 100W
- Transducer beamwidth: 100 x 44 degrees
- Transducer maximum depth: 330ft
- Transducer Measures: Depth, Temperature and Speed
- Transducer number of pins: NMEA 2000
- Transducer supported deadrise/transom angles: 0 to 22 degrees
The Garmin Airmar DST820 Smart Thru-Hull Transducer directly replaces the discontinued Garmin Airmar DST810.
Key Details of the Replacement
• Compatibility: The Garmin Airmar DST820 fits the exact same 2-inch thru-hull fitting as the DST810, meaning you can swap the insert out without doing any new hull work or cutting.
• Core Functions: It continues to provide depth, speed-through-water, water temperature, and integrated vessel attitude data (heel, trim, pitch, and roll) over the NMEA 2000 network with Bluetooth connectivity for the Airmar CAST app.
• Upgrades: It features improvements like an updated Gen2 paddlewheel for better low-speed linearity and a slightly faster refresh rate.
