![Airmar UDST800P-N2 Ultrasonic Smart Sensor - N2K [UDST800P-N2]](https://cdn.shopify.com/s/files/1/0855/3916/0358/files/84041XL.jpg?v=1734387790)
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- USA
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Ships within 48 hours · Estimated delivery Jul 5 - Jul 10
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Description
Airmar UDST800P-N2 Ultrasonic Smart Sensor - N2K [UDST800P-N2]UDST800P N2 Ultrasonic Smart Sensor N2K The UDST800 just turned your maintenance time into more cruising timeand made your boat smarter too. Ultrasonic speed, depth, and temperature in one single housing with no moving parts make this sensor high precision, low maintenance solution for use on power and sailboats of all types and sizes. Say goodbye to paddlewheel maintenance and hello to Smart technology, from the company that invented the Smart
UDST800P-N2 Ultrasonic Smart Sensor - N2K
The UDST800 just turned your maintenance time into more cruising time…and made your boat smarter too. Ultrasonic speed, depth, and temperature in one single housing with no moving parts make this sensor high precision, low maintenance solution for use on power and sailboats of all types and sizes. Say goodbye to paddlewheel maintenance and hello to Smart technology, from the company that invented the Smart™ Sensor.
Features:
- Ultrasonic Depth, Speed and Temperature in one housing
- Precise readings at high speeds ideal for powerboats, cruising, and sailing
- Data Update Rate: up to 10 x per second
- Advanced filtering & sampling rates for increased accuracy at all speeds
- Adapts automatically to boat speed, water depth, and water clarity keeping speed-accuracy consistent
- No moving parts – no paddlewheel
Specifications:
- Correlation Speed Sensor Transmitting Frequency: 4.5 MHz
- Correlation Pulse Repetition Frequency: 0.5 kHz to 12 kHz (varies with speed)
- Speed Range: 0.1 to 50 knots (.1 MPH to 57 MPH)
- Available Outputs: NMEA2000®
- Water Temperature Range: -4°C to 40°C (32°F to 104°F)
- Depth: 235 kHz
- Depth Range: Minimum 0.6 m ( 2'), Maximum 100 m (328')
- Supply Voltage—NMEA2000®: 9 VDC to 16 VDC
- Supply Current: 80 mA - 200 mA, Average 125 mA @12VDC
- Thru-Hull Housing Material: Plastic (bronze or stainless steel optional)
- Thru-Hull Housing Diameter: 51 mm (2")
- CE Compliant: Yes
- Retrofits into AIRMAR P617V housing
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.2 ★★★★★
Based on 54 reviews
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Product Reviews
★★★★★ 5
Beautiful shoe but too narrow
Size: 10 Wide, Color: Navy Grainy Leather
Too narrow
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 24, 2026
★★★★★ 5
Looks good feels good
Size: 13 Wide, Color: Black
I've had them 2 weeks and love them. Took a little breaking in but they feel great now.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 8, 2026
★★★★★ 4
Very narrow
Size: 10 Wide, Color: Cognac
Run narrow. For very narrow feet. Wide width fits like a regular width.
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Reviewed in the United States on February 9, 2026
★★★★★ 5
Comfortable Shoes Right Out of the Box
Size: 9, Color: Black
I bought these shoes for my husband. He has a very hard time finding quality, comfortable shoes. These shoes are just as comfortable as his New Balance. He uses them as a dress shoe and wears them at least once a week. There was no break in period necessary. They were comfortable right out of the box! The only thing we didn't like was the white sole color. Once I knew he was going to keep them, I used a black sharpie marker to color the soles black. Instant amazing, comfortable dress shoes. They were well worth the cost. If you or your SO needs a comfortable pair of shoes, we highly recommend them.
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Reviewed in the United States on September 2, 2025
★★★★★ 3
Decent Shoes with Misleading Description (Not Leather)
Size: 12 Wide, Color: Black, Size: 12 Wide, Color: Black
I only look for leather when I’m purchasing dress shoes. Under the description “details” on this item it lists the shoe as leather upper and inner lining. A photo shows “genuine Napa leather lining”. If you keep reading (which I have now that I’ve received the shoes) it shows “faux leather” in the small print and that is not “leather”. I run a small leather business and this irks me because it’s clearly false advertising. The details also show the product is made in Brazil but when they arrived today, the shoe tag shows “Made in China” and “Man Made upper and lower”. I don’t hate the shoes. They look nice. What I know is they won’t hold up over time like leather, which is why the description should be accurate and not misleading.
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Reviewed in the United States on March 28, 2026
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