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ST800 Transducer

Low-profile through-hull speed/temp sensor for Raymarine.

The ST800 is for use with Raymarine instruments. It can also be used with a Y-cable as an add-on sensor for Raymarine fishfinder transducers.


Type Instrument transducer
Mounting Low-profile through-hull
Housing P120 Plastic or B120 Bronze
Hull Aperture2" (51mm)
Usable Shaft Length2.25" (57mm)
Cable Length 10 meters
Mix and Match Χ
Temperature Sensor
Speed Sensor
Retractable Insert
Tilted Χ
Status In production
Reference Page View the ST800 page on the Airmar website


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Available Versions

These transducers have a permanently attached 10 meter cable.

Cable ConnectorGemeco Part #Airmar Part #EquipmentHousing
ST800-B-5KitRaymarine ST50Bronze
ST800-B-FISOKitRaymarine ST60Bronze
ST800-B-RAY31-488-1-02Raymarine DSM300, sold with Y-cableBronze
ST800-P-FISO31-487-1-01Raymarine ST60Plastic
ST800-P-RAY31-488-1-03Raymarine DSM300, sold with Y-cablePlastic

Replacement Parts

PartAirmar Part #Description
02-030Bronze Hull Nut
02-131-01Bronze Cap Nut
04-004Plastic Hull Nut
04-234-1Plastic Cap Nut
33-340-01B120 Bronze housing
33-340-02P120 Plastic Housing
33-481-01Blanking Plug
33-493-01Paddlewheel Kit