| 114035 | DST820-PV-N2 | $442.50 |
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Airmar DST820-PV-N2 PSTI Plastic Thru-Hull w/Bluetooth 235kHz
AIRMAR DST820-PV-N2 PSTI PLASTIC TH W/ BLUETOOTH 235KHZ
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Technical Information Guide
DST820-PV-N2 PSTI Plastic Thru-Hull with Bluetooth 235kHz
The DST820 Smart Multisensor is the next evolution of Airmar’s industry-leading technology, replacing the DST810 and introducing PSTI compliance for enhanced onboard network security.
With its secure QR-code setup, connecting your DST820 has never been easier—or safer. Simply scan the QR code and enter a one-time security password on your mobile device to protect your sensor on the network.
Featuring Airmar’s high-performance Gen2 paddlewheel, the DST820 delivers unmatched speed-through-water accuracy— providing precise start-up data below 0.3 knots, linear accuracy from 0.6 knots, and stable, reliable readings all the way up to 45 knots.
Whether you’re a day sailor, weekend cruiser, or tactical racer, accurate speed-through-water (STW) data helps you fine-tune sail trim and rig balance for maximum performance. For racers, precise STW readings enable accurate velocity made good (VMG) and target speed calculations, ensuring every tactical decision is data-driven.
Together, the DST820 and Airmar’s CAST™ app make speed calibration simpler than ever. The free CAST app provides powerful calibration tools—once only available through costly PC-based software—now instantly accessible from your smartphone or tablet. Choose from basic or advanced calibration options to suit your needs.
Beyond speed, the DST820 measures depth and water temperature, and provides a 5.7 Hz (5× per second) speed output with improved resolution. Its integrated attitude sensor delivers heel and trim data, enabling heel-compensated speed calibration across multiple heel angles and speed ranges—fast, intuitive, and completely independent of onboard instruments.
With depth tracking from 0.5 m (1.6 ft) to 100 m (328 ft), the DST820 also provides reliable depth data to help ensure you never run aground.
The result: industry-leading speed accuracy, wireless calibration convenience, and next-generation security—all in one powerful, compact sensor.
Features:
- The DST820 is fully compliant with UK PSTI security standards, ensuring that the connection between DST820 and a mobile device is secure.
- The industry’s best speed paddlewheel – DST820 features the Gen2 paddlewheel for industry-leading speed performance from 0.3 knots to 45 knots.
- Smoother Speed – 5.7 Hz speed output (5X per second) for visibly smoother speed-through-water reporting and faster data for better decision making when every second counts.
- Integrated Attitude Sensor – For heel and trim, and used in advanced speed calibration.
- DST820 secure Bluetooth® connectivity to Airmar’s CAST app provides the ability to:
- Calibrate the DST820 in a simple, intuitive way from your mobile device.
- Conduct basic and advanced heel-compensated speed calibrations for improved speed-through-water outputs across the speed range.
- Advanced speed calibration allows for manual speed entries for multiple heel angles and up to 10 speeds, formerly only possible through expensive PC software.
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Apply NowRETURN POLICY
We accept returns on most items within 30 days of delivery.
To start a return, submit a Return Authorization (RA) request using the form below. The RA must be issued within 30 days of the delivery date, and the item must be received back at our warehouse within 14 days of the RA being issued.
Requirements for a full refund include:
1. Item must be in new, uninstalled condition.
2. Item must be returned with all original packaging, hardware, and accessories.
3. Return shipping is prepaid by the customer unless the item arrived damaged, defective, or incorrect due to our error.
4. RA number must be clearly marked on the outside of the package.
NON-RETURNABLE ITEMS: The following are final sale and cannot be returned:
- Special order, built-to-order, or custom items
- Items cut, drilled, modified, or installed
- Items missing original packaging or accessories
- Items without proof of purchase
General - Cancellations, Shipping Damage, Missing Packages, Shipment Refusals:
Claims of shipping damage, incorrect items, or missing items must be reported within seven (7) days of delivery. For LTL freight shipments, damage must be noted on the delivery receipt at the time of delivery. Concealed damage claims after a clean signed POD are difficult to recover and may be denied by the carrier. Orders that have been processed and shipped cannot be cancelled, and you may need to wait until you receive the merchandise in order to return it. Customer is responsible for all costs associated with refused shipments including carrier fees, freight to the customer, and return freight. We reserve the right to refuse returns that are sent COD, without a return authorization, show signs of undisclosed installation/use, have missing parts/packaging, missing proof of purchase, or have SKU numbers that do not match our records. If you do not comply with any of the above conditions, we reserve the right to refuse the return/exchange, or to impose different or additional conditions.
Must Be Returned to the Following Address:
Marine Depot Direct
Returns Department
14716 Central Ave
Chino CA 91710
PARTIAL REFUNDS OR RESTOCKING FEES
| Condition | Refund |
|---|---|
| New condition, within 30-day window | 100% of the item price (less return shipping) |
| New condition, past 30-day window (case-by-case)* | 80% of the item price |
| Items that are damaged, missing parts, not in the original condition, or have obvious signs of use for reasons not due to our error | Up to 50% of the item price |
| Products that are unusable, destroyed, or incomplete to the point of no resale value | 0% of the item price |
*For most items, the return window is 30 days after delivery. LTL freight items, oversized items, and large hardware assemblies may be subject to an additional restocking fee to cover return freight and inspection. This will be disclosed when the RA is issued.
How Refunds Are Issued
If you're receiving a refund after we have received your item, it may take an additional three to five business days to process your return fully and issue your refund.
Once we issue your refund, it may take additional time for your funds to be made available in your account by your financial institution. See the following table for more details.
| Refund Method | Refund Time (After Refund Is Processed) |
|---|---|
| Credit card | Three to five business days |
| Debit card | Up to 10 business days |
| Checking account | Up to 10 business days |
Shipping
In-stock items ship within 1 business day from our California or Florida warehouse. Items showing a lead time above ship once stock arrives at our warehouse.
> Same-day shipping on orders placed before 9:00 AM Pacific Time
> Standard ground delivery is 3-7 business days. Need it sooner? Choose Next Day Air or 2nd Day Air at checkout.
> Free shipping on U.S. orders over $99 (excluding AK and HI)
> Oversized items ship by LTL freight. Inspect the shipment and note any damage on the delivery receipt before signing.
> International shipping to Canada and other countries available at checkout
For full details, see our Shipping Policy.