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ST850 NMEA 2000 Transducer

Low-profile through-hull speed/temp sensor for NMEA 2000 networks

The ST850 is sold with a plastic housing only. Bronze and stainless steel housings are available for separate purchase.


Type NMEA 2000 network transducer
Mounting Low-profile through-hull
Housing Urethane
Hull Aperture2" (51mm)
Usable Shaft Length2.25" (57mm)
Cable Length 6 meters
Mix and Match Χ
Temperature Sensor
Speed Sensor
Retractable Insert Χ
Tilted Χ
Status In production
Reference Page View the ST850 NMEA 2000 page on the Airmar website


Click an image to display the document in pdf format for viewing or download.

Available Versions

These transducers have a 6 meter drop cable ending in a standard male NMEA 2000 connector. They should be plugged in to a T-connector on an NMEA 2000 backbone.

Cable ConnectorGemeco Part #Airmar Part #Equipment
ST850PV-N244-164-1-01NMEA 2000

Replacement Parts

PartAirmar Part #Description
02-030Bronze Hull Nut
02-131-01Bronze Cap Nut
04-004Plastic Hull Nut
04-234-1Plastic Cap Nut
33-113Paddlewheel Kit
33-522-01Blanking Plug
33-536-01Paddlewheel Kit with Valve