Airmar DT800-P617V Intelligent Depth-Temperature Transducer 20 degree NMEA 2000

The DT820 is a flush mount, plastic thru-hull smart sensor that will provide digital depth(numbers only) and temp readings to your existing NMEA 2000 network. This smart sensor works at speeds up to 52 knots and depth up to 200'. By operating at 235khz, the DT 820 will not interfere with your 200khz fishfinder. The transducer element in the DT 820 is tilted at 20 degrees for use in boats with 16-24 degree deadrise and is compatible with Garmin, Northstar, Raymarine, Lowrance, Simrad and Furuno. Includes a 3-year warranty.

About Us - Seawire Marine

Seawire Marine is a marine electronics company specializing in the repair, refurbishment, and sale of navigation and communication equipment. We are authorized dealers / resellers for Raymarine, Garmin, Simrad, B&G, Lowrance, and Furuno, giving our customers access to trusted brands and knowledgeable support.

With years of hands-on experience in both recreational and commercial marine electronics, we perform component-level diagnostics and repairs on a wide range of equipment, including autopilots, chartplotters, radars, transducers, VHF systems, and more. Every unit we sell or service is inspected, tested, and backed by our 6-month warranty, which includes no-cost repair or replacement if an issue develops.

We pride ourselves on fast turnaround times, accurate evaluations, and honest technical recommendations. Whether you’re upgrading your vessel’s electronics, replacing a failed component, or searching for a hard-to-find legacy unit, Seawire Marine is committed to providing reliable products and exceptional support to keep your vessel operating safely and confidently on the water.

Return Policy, Warranty, & Terms

We offer a 30-day return or exchange period on all eligible purchases.

  • Items must be returned in the same condition they were received.
  • Buyer is responsible for return shipping unless the item was not as described.
  • Exchanges are subject to product availability.

180 Day Warranty, which provides:

  • Free technical support
  • Troubleshooting assistance
  • No-cost repair or replacement if an issue develops

Terms & Conditions

  • All items are sold exactly as shown in the pictures. Please review all photos carefully before purchasing.
  • Accessories, cables, covers, or mounts are included only if shown or explicitly listed.
  • Compatibility is the buyer’s responsibility. Contact us if you need assistance before purchasing.

This return policy, warranty, and terms does NOT apply to items sold as “For Parts,” “Not Working,” “As-Is,” or otherwise specified in the item description as non-returnable.