Airmar ST800PV-N2 NMEA 2000 Speed & Temp Transducer - ST800PV-N2

Airmar ST800PV-N2 NMEA 2000 Speed & Temp Transducer - ST800PV-N2

Marsoni

M251S

$188.03

Get it in 3 business days with 1 day shipping. Friday, May 29

Airmar ST800PV-N2 NMEA 2000 Speed & Temp Transducer - ST800PV-N2ST800PV N2 NMEA 2000 Speed & Temp Transducer The ST800 speed and temperature sensor process digital signals inside the thru hull housing. Then this Smart Sensor sends data to a chart plotter, radar screen, or digital display in either analog or NMEA 2000 format. These low profile units are nearly flush, minimizing drag with only 5 mm (3 16") extending outside of the hull. Features: Speed and fast response water temperature sensing Speed range from 2

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This relay has experienced failure again after just a couple of months of use. It's not the mag coil that fails but rather the contacts are of such low quality that they corrode beyond their ability to conduct power, and fast. I have had to change two of these so far and am on the third one. The seller will ship replacements but who wants to keep replacing them? I have to travel in my RV with a spare. This relay has never been exposed to the elements. It's safely mounted inside a sealed bay. Be aware of any brands that look like this, they are all the same.

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Reviewed in the United States on November 15, 2025

Verified Purchase

Dave Kulina

Natrona Heights, US

★★★★★ 5

Works great

I added extra batteries to run a truck camper without killing my main battery and this works great. Simple to install and i have no had any problems in the pay few months and i use it every single day

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Reviewed in the United States on April 18, 2021

Verified Purchase

Amazon Customer

West Palm Beach, US

★★★★★ 5

Installed in my RV.

This product works well. It is somewhat difficult to mount. The contact points are a little too close together. These deficiencies are understandable given its low cost and small size.

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Reviewed in the United States on January 18, 2021

Verified Purchase

Bret Jackson

Omaha, US

★★★★★ 5

Best main wire for price

Size: 25 FT, Style: 0 (1/0) AWG RED

Good main wire and is accurate size and length

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Reviewed in the United States on May 18, 2026