Garmin Airmar DST810 Smart Transducer
Quick take
The Garmin Airmar DST810 is a plastic thru-hull NMEA 2000 smart transducer that provides depth, water speed, temperature, and attitude sensing data (heel/trim and pitch/roll) for compatible marine systems. It supports up to 330 ft depth and outputs water speed at 5 Hz for smoother readings on chartplotters and displays. The biggest buying caveat is that some buyers report frustrating software experiences and durability concerns, so plan for careful installation and calibration.
Pros and cons
Pros
- Multi-sensor package: depth, speed, temperature, plus attitude sensing (heel/trim, pitch/roll).
- Fast water speed output (5 Hz) designed to improve how speed data looks on compatible chartplotters.
- NMEA 2000 integration for networked display and data sharing.
- Bluetooth connectivity for calibration management through the Airmar Cast app.
Cons
- Software and app experience can be a weak point, based on buyer feedback.
- Some buyers report early unit failures, so long-term reliability may be a concern for a small subset of owners.
What buyers think
Buyer feedback is mixed, with installation and day-to-day usefulness praised by several owners. Positive themes include straightforward setup, solid communication with compatible Garmin equipment, and the convenience of viewing depth, speed, and water temperature data beyond the main chartplotter (via Bluetooth/app support).
On the downside, buyer-review evidence is limited but includes recurring concerns about software usability and, for some owners, premature failures where depth, speed, and temperature output stops working. Because these are high-impact issues, they can matter if you depend on your transducer for routine navigation and want the lowest risk possible.
What this transducer is for
The DST810 is built for boat owners who want a single thru-hull sensor feeding a modern marine data network. It’s especially relevant if you’re using, or planning to use, NMEA 2000 to centralize measurements on a chartplotter (and possibly other displays).
Unlike basic depth-only setups, this model adds water speed and water temperature, plus attitude sensing such as heel/trim and pitch/roll. That combination is a good fit when you care about more than depth alone, for example when you want faster speed response and additional motion context for how the boat is behaving.
Key features that affect real-world use
Depth, speed, and temperature in one package
The DST810 is designed to measure depth up to 330 ft. It also provides water speed and water temperature so your system can show a fuller picture of conditions at the hull level.
Fast 5 Hz water speed output
A standout spec is the 5 Hz water speed signal output. For compatible chartplotters and displays, this can help make speed visualization feel smoother and more responsive during maneuvers.
Attitude sensing for heel, trim, and pitch/roll
This transducer includes attitude sensing, enabling heel/trim and pitch/roll data for systems that can use it. If you’re tracking motion and boat attitude as part of how you evaluate performance or handling, this extra data can be valuable.
Bluetooth calibration management
Bluetooth connectivity is included to help manage calibration of sensor data through the Airmar Cast app interface. If you prefer using your phone for calibration steps rather than relying only on menu navigation at the helm, this is a practical workflow advantage.
Thru-hull installation and beam behavior
The DST810 is a plastic thru-hull smart transducer that uses a wide, fan-shaped beamwidth (10 x 44 degrees). Wider beam patterns can be helpful on vessels with steeper deadrise hulls or heeling sailboats, where “finding bottom” consistently matters.
Pros and cons for different boat setups
Best for
- Owners building or upgrading an NMEA 2000 network who want one transducer to feed multiple measurements.
- Garmin chartplotter users who want depth, speed, temperature, and attitude sensing in a coordinated marine data setup.
- Buyers who are comfortable with app-assisted calibration and want more responsive speed visualization (thanks to 5 Hz output).
Potentially not the best fit
- Shoppers looking for a “set it and forget it” experience with minimal software interaction. App/software friction has appeared in buyer feedback.
- Anyone who cannot tolerate the consequences of a transducer failure, since some buyers report units that stop working earlier than expected.
- People who only need basic depth and do not want the extra sensors or network integration.
Price and availability
The price point for the DST810 can be high compared with simpler transducers, so it’s most worth considering if you’ll use the full NMEA 2000 feature set (speed, temperature, and attitude data) rather than only depth.
Availability may fluctuate, so check the current listing for stock status and the latest price.
How to choose between this and simpler options
If your priority is accurate depth only, a lower-cost depth-only transducer can be more appropriate. If you want a more complete “vessel measurement” stack, the DST810 makes sense because it combines multiple sensors and produces faster speed output, while also supporting attitude sensing.
When evaluating other options, focus on category fit: whether you need NMEA 2000 integration, whether your chartplotter/display ecosystem supports the data you want, and whether you’re comfortable with calibration workflows.
Installation and compatibility checklist
- Confirm you have, or plan to add, an NMEA 2000 network so the transducer can share data where you need it.
- Verify your chartplotter and display setup can use the depth, speed, temperature, and attitude data streams.
- Plan for calibration using the Airmar Cast app workflow via Bluetooth.
- Make sure you’re selecting the right mounting approach for a thru-hull installation on your hull type and deadrise characteristics.
Final verdict
The Garmin Airmar DST810 smart transducer is a strong multi-sensor choice for NMEA 2000 boat owners who want depth, water speed, temperature, and attitude sensing, plus a faster 5 Hz speed signal for smoother visualization. It’s especially compelling if you value app-assisted calibration convenience. Still, because some buyers report software frustration and unit failures, it’s wise to be comfortable with installation and calibration steps and to consider how much you rely on transducer data day-to-day.
FAQs
Does the Garmin Airmar DST810 require an NMEA 2000 network?
It is an NMEA 2000 smart transducer, so it is designed to work on an NMEA 2000 network to share depth, speed, temperature, and attitude data with compatible marine displays.
What measurements does the DST810 provide?
The DST810 is designed to provide depth, water speed, and water temperature, and it also includes attitude sensing data such as heel/trim and pitch/roll for compatible systems.
How deep can it measure?
It can measure depths up to 330 ft.
What does 5 Hz water speed output mean?
It refers to how frequently the transducer outputs the water speed signal. A 5 Hz output is intended to help speed visualization feel smoother and more responsive on compatible chartplotters or displays.
How does Bluetooth connectivity help?
Bluetooth enables calibration management through the Airmar Cast app interface, which can make setup and calibration steps more convenient using a phone.
Is it a good choice if I only need basic depth?
If you only need depth, a simpler depth-only transducer could be a better value. The DST810 is best when you will use its wider set of measurements and NMEA 2000 integration benefits.
What’s the main risk to consider before buying?
Buyer feedback includes concerns about app/software experience and some reports of early failures. If transducer downtime would be a major problem for you, consider that risk and plan your installation carefully.
Specifications
| Product Title | Garmin Airmar DST810 Smart Transducer |
|---|---|
| Category | Electronics > Car & Vehicle Electronics > Marine Electronics > Marine GPS Chartplotters |
| Brand | Garmin |
| Manufacturer | Garmin |
| Model Name | Garmin |
| Model Number | 010-11051-20 |
| Item Weight | 0.8 Kilograms |
| Display Size | 75 Inches |
| Display | No Display |
| Maximum Measuring Depth | 330 Feet |
| Mounting Type | Dashboard Mount, found in image |
| Item Dimensions L x W x H | 9.3"L x 7.7"W x 3.5"H |
| Brand Name | Garmin |
| UPC | 753759260989 |
| Manufacturer Part Number | 010-11051-20 |
| Included Components | Garmin Airmar DST810 Smart Transducer |
| Warranty Description | 2 year limited warranty |
| Item Type Name | Marine Accessory |
| Screen Size | 75 Inches |
| Display Type | No Display |
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