Airmar
Airmar UDST800P-N2 Ultrasonic Smart Sensor - N2K [UDST800P-N2]
Airmar UDST800P-N2 Ultrasonic Smart Sensor - N2K [UDST800P-N2]
Out of stock
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✓ Trusted by Sailors Nationwide
✓ Expert Customer Service
✓ Bulk Pricing Available
At MarineXGear, we are proud to have the best refund and return policies in the industry. If you’re not satisfied with your purchase for any reason, you may return it to us within 30 days for a refund.
If you have a problem with our order (there are missing components, damages, or the product is not functioning), please reach out to us as quickly as possible. Some of the problems can be resolved by going through the product manual or the product FAQs.
Refer to our Refunds & Return Policy for more details.
Order Processing
Once we receive your order, we will send you a confirmation email. Then we will process the order by confirming that the product is in stock and ready for shipment. If any of the items in your order are back-ordered, we will reach to you via email or phone and you may choose to either wait or receive a 100% refund.
Please allow 1-3 days for processing your order.
Shipping
We ship to the lower 48 continental United States only at this time.
Shipping times and shipping method will depend on the specific product and brand you purchase. If you have any shipping question, feel free to ask on the chat or email us at info@marinexgear.com.
We will send tracking information by email the same day the shipping tracking number is created/available.
Before you sign the shipping bill, please THOROUGHLY INSPECT YOUR ITEM. Signing for the receipt of a damaged product removes the liability of the shipping company and MarineXGear. Once you accept your shipment as non-damage, your item is your property.
![Airmar UDST800P-N2 Ultrasonic Smart Sensor - N2K [UDST800P-N2]](http://marinexgear.com/cdn/shop/files/84041XL.jpg?v=1775871306&width=150)
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
Why Choose MarineXGear
At MarineXGear, we believe true peace of mind on the water starts with having the right equipment. Our mission is simple: to be the trusted destination for premium marine gear and dependable on-water solutions. Every product we carry — whether navigation systems, safety equipment, marine electronics, or boat accessories — is carefully chosen to help you perform at your best, stay safe, and get the most out of every voyage.
A+ Customer-First Approach
We're more than an online store — we're your partner on the water. Unlike large, impersonal retailers, our dedicated team delivers personalized guidance at every step. Whether you're outfitting a vessel for the first time, upgrading your gear, or need expert advice on a specific product, our specialists are always just a call or email away.
Passion for Wellness & Resilience
Our brand is built on a genuine love for the sea. We live and breathe marine equipment — and when you reach out to MarineXGear, you'll connect with experts who understand both the technical specs of our products and the on-water lifestyle they support.
Trusted Experts, Curated Brands
We partner directly with the most respected names in the marine industry. Our curated selection ensures every product meets our high standards for quality, durability, and performance on the water. With MarineXGear, you shop with confidence, knowing you're investing in proven gear backed by full manufacturer warranties.
More Reasons to Choose MarineXGear
- Price Match Guarantee – We’ll match any competitor to ensure you always receive the best value.
- Free Shipping – Enjoy free delivery on most orders across the lower 48 U.S. states.
- 100% Secure Ordering – Our platform uses SSL encryption to protect your information.
- Exclusive Packages & Volume Discounts – Customized solutions available for clinics, wellness centers, and large orders.
- Authorized Dealer – Every order is protected with full manufacturer support and warranties.
At MarineXGear, we're committed to keeping you safe, equipped, and confident on the water. With our expertise, personalized service, and carefully curated selection, you can invest in your vessel and your adventures with complete peace of mind.
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