Airmar DST820 Bronze Thru Hull - NMEA 2000 - 235kHz [DST820-BV-N2]

Airmar

Airmar DST820 Bronze Thru Hull - NMEA 2000 - 235kHz [DST820-BV-N2]

Availability Out of stock

SKU TO-114231

Product Type Transducers

Brand Airmar

Description
Shipping + Returns Policy

DST820 Bronze Thru Hull - NMEA 2000 - 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.

Specifications:

Functions: Depth, Speed, Temperature, Attitude
Mounting Style: Low Profile Thru-Hull
Power Rating: 80 W
Protocol Output: NMEA 2000®
Housing: Bronze
Max Deadrise Angle: 22°
Hull Material: Fiberglass or metal
Hole Size: 51 mm (2")
Retractable housing: Yes
Acoustic Window: Urethane
Attitude Sensor: Yes
Bluetooth Capable: YES Bluetooth BLE
Cable-Length: 6 m (20') NMEA 2000® cable
Certifications: CE
Common Use: Cruising/Racing Sailboats, Leisure/Yachting, Fishing
Conventional Beam: 10°x44°
Data Rate: Depth: 1X/second, Speed: 5X/second, Heel/Trim: 10X/second
Max Deadrise: Up to 22°
Max Depth: 0.5 m (1.6') to 100 m (330')
Minimum Depth: 0.5 m (1.6')
NMEA 2000 LEN: 2
Pulses: 20,000 p/nm* (5.6 Hz per knot)—*p/nm = pulses per nautical mile
Retrofits: Fits most Airmar 2" housings
Speed Range: Up to 45 knots
Temperature Accuracy: ±0.5°C (±1.8°F)
Tilted Element: No
Usable Shaft Length: 121 mm (4.75")
Voltage: 9 to 16 VDC
Water Temperature: -10° to 40°C (14° to 104°F)

SHIPPING

Shipping Locations:
Canada - Timmins, ON
USA - Bayville, NJ & Tampa, FL
Orders will ship from the closest location with stock

Preferred shipping methods will be selected at the time of purchase by the customer. The selected method of shipping will be added to the purchase. The order will then be processed for delivery the same or next business day, depending on the time the order was placed. Shipping times vary on the method selected and shipping company. Shipping to Canada will be calculated accordingly and shipped with UPS.

Orders with any additional weight or large dimensions may be subject to Oversized Package Fees. Anchors, Trolling Motors, Fishing Rods, Marine Equipment, Riggers, Tents, for example will all see additional charges. For bulk orders please call 1-800-295-1389 (leave a Voicemail) or e-mail info@tackleoutdoors.com. Any orders that may require additional freight/ shipping charges will be charged accordingly.

FREE SHIPPING OFFERS AND DISCOUNT CODES

Free shipping codes when given out for specific products may not work if other items are in the cart of a customers order. These have been assigned to a certain product(s) and have been intended for single item purchases. Codes will be specific to product or product category/ collection and will work in accordance to that promotion or campaign. Contact us if you feel there is an error and we look over the order. Free Shipping offers are only valid in the US, unless the promotion states otherwise.

Shipping Discount Codes are only valid for the duration of any current promotions. We offer discount codes to our Canadian shoppers in replacement of free shipping offers only valid in the US. Discount codes will either be specific to a product(s) or include shipping discount for an entire order.

Any questions about shipping charges/ Canadian Shipping or items eligible for free shipping can be emailed to: info@tackleoutdoors.com

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.

RETURNS POLICY

You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

If there is an issue with your item/order, please contact us within 30 days of the original receipt. If the item is returned unopened in the original packaging, we will exchange it, offer you store credit, or offer you a refund based on your original method of payment. The product must be returned within 14 business days of the issuance of the credit or refund. All products must be packed in the original packaging, including any accessories, documentation and registration that shipped with the item.

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the time it takes us to process your return once we receive it, and the time it takes your bank to process our refund request (5 to 10 business days).

A 10% open box fee in addition to the 10% restocking fee is in effect on any sealed product that is opened or removed from its original packaging.
We do not permit the return of the following products, unless due to manufacturer defects:
• Special orders and products/ specifications
• Illumination devices, electronic sights, night vision equipment and any optics

PLEASE NOTE:
When selecting a carrier for your package that you insure the carrier offers shipment tracking to offer a safe return or declare the full value so that you are covered/ protected if the shipment is lost or damaged. The customer is responsible for the safe return of the item and any loss or damage during shipping while selecting a carrier.

You may also reach out to us at info@tackleoutdoors.com