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Airmar DT820PV-235-N2 DT800 NMEA 2000 Thru-Hull Depth Temperature Transducer 20° Tilt

Manufacturer

Airmar

<h3>Airmar Technology Corporation: Leaders in Marine Sensing</h3><p><strong>Airmar Technology Corporation</strong> has been at the forefront of acoustic and ultrasonic sensing since its founding in 1982 in Milford, New Hampshire. Over more than four decades, the company has grown from a single-product transducer manufacturer into the world&apos;s leading designer and maker of high-performance marine sensing technology — earning a reputation for precision, durability, and innovation across recreational, commercial, scientific, and military applications.</p><p>At the core of Airmar&apos;s identity is a deep expertise in ultrasonic technology. As one of the company&apos;s directors famously put it, Airmar doesn&apos;t build marine electronics — it builds high-end &quot;speakers.&quot; That philosophy has made Airmar the trusted OEM partner behind the transducer technology found inside some of the biggest names in marine electronics. From sport fishing to offshore surveying, Airmar products are engineered to deliver reliable, high-resolution data whether you&apos;re chasing gamefish in shallow freshwater or conducting hydrographic surveys at depth.</p><h3>Marine Transducers for Every Application</h3><p>Airmar&apos;s lineup of marine transducers spans everything from entry-level transom-mount sensors to professional-grade CHIRP thru-hull transducers capable of reading extraordinary depths. Their CHIRP-ready transducers operate across low, medium, high, and high-wide frequency bands, providing anglers and mariners with exceptional target separation, bottom detail, and depth performance. Crucially, Airmar&apos;s &quot;Mix &amp; Match&quot; cable system means a single transducer body can be paired with brand-specific adapter cables — making it easy to upgrade your electronics without swapping out the transducer itself.</p><p>Airmar transducers are engineered to work seamlessly with leading marine electronics platforms. Their <a href="/11479-airmar-raymarine-transducers-accessories-202422">Raymarine-compatible transducers and accessories</a> are a popular choice for Axiom and other Raymarine multifunction display users who want industry-leading sonar performance. Likewise, Airmar&apos;s <a href="/11479-airmar-humminbird-transducers-cables-accessories-202118">Humminbird-compatible transducers, cables, and accessories</a> — including dedicated 9-pin and 14-pin connector variants — integrate directly with Helix, SOLIX, and APEX fish finders for plug-and-play CHIRP capability.</p><h3>WeatherStation Instruments</h3><p>Beyond transducers, Airmar is renowned for its WeatherStation® instruments — all-in-one ultrasonic weather sensors that consolidate multiple measurement capabilities into a single compact, rugged housing. Using proprietary ultrasonic technology with no moving parts, these instruments measure wind speed and direction, temperature, humidity, barometric pressure, and rainfall simultaneously. Because they rely on ultrasound rather than mechanical anemometers, they are immune to bearing wear and unaffected by salt, dirt, and marine fouling — making them exceptionally reliable in harsh environments.</p><p>WeatherStation instruments are deployed worldwide on fixed marine platforms, unmanned surface vehicles (USVs), research vessels, and land-based weather monitoring stations. They are trusted by organizations ranging from recreational boaters to national oceanographic centers.</p><h3>Quality and Warranty</h3><p>Airmar&apos;s commitment to quality is reflected in its manufacturing process — largely hands-on and craftsmanship-driven — and in its warranty program. As of 2025, Airmar extended its standard product warranty to three years across its full lineup, including transducers and sensors. Installers who are Airmar Certified Installers (ACIs) can offer customers an exclusive extended warranty on qualifying transducers, reinforcing the brand&apos;s long-term support philosophy.</p>

Part Number

DT820PV-235-N2
07/11/2036 6:48 AM
Sale Price

$381.07

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Product Details

The Airmar DT800 is a low-profile, retractable thru-hull smart sensor that combines depth and temperature measurement in a single compact housing. Designed for power and sailboats with 16° to 24° hull deadrise, this transducer features a fixed 20° tilted element that compensates for hull angle without requiring an external fairing block.

Key Features:

  • Tilted element design positions the ceramic element at the optimal angle inside the housing, eliminating the need for a hull-protruding fairing block
  • Broadband Ceramic Technology at 235 kHz delivers improved resolution and sensitivity while preventing interference with other onboard echo sounders
  • Smart Sensor technology with embedded microelectronics places the transducer element and signal processor millimeters apart for superior performance
  • Retractable housing with self-closing valve allows transducer removal for servicing while minimizing water intrusion
  • Low-profile design maintains hull performance and provides accurate readings even at high speeds
  • 12° narrow beam angle with 100 watts RMS power for precise depth detection from 1.6 to 594 feet

Technical Specifications:

  • Frequency: 235 kHz with 12° cone angle
  • Fixed tilt angle: 20° (optimized for 16° - 24° hull deadrise)
  • Housing material: Plastic with urethane acoustic window
  • Connection: 5-pin NMEA 2000 with 20 ft. cable
  • Installation hole diameter: 2 inches
  • Dimensions: 4.92" H x 2.94" OD
  • Compatible with fiberglass or metal hulls

This thru-hull transducer integrates seamlessly with NMEA 2000 networks, providing reliable depth and temperature data for navigation and fish-finding applications.

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very prompt service,items were in stock and shipped next day,salesman was helpful and friendly.Will place in favorites and do buisness with again.

I am really impressed. I placed my first order on Monday evening about 7:30 pm and it was delivered to my front door today (Wednesday morning), less than two days later. And that was with ground shipping! On top of that Autoplicity had one of the best prices. I WILL be ordering again from them.

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