Raymarine forum

have airmar st 550 currently, p17 housing, currently feeds st50 insurment. works
want airmar st850 plastic, will feed iTC5 [want valve feature]
cant seem to find one compatible with raymarine products?
any guidance would be greatly appreciated
bucky

Hello bucky,

Personally I don't talk Airmar model designations if I can avoid it as I find they tend to obscure more than they enlighten, but I think what you need is our part E26031. You can see it and the other instrument-compatible transducers at here. E26031 is the standard retractable, flap-valve speed-temp sensor we've used ever since the later ST50 systems.

Regards,
Tom