Solid State Flow Sensor for Seawater cooling?

[ReedStr]

Does anyone know of or has installed a solid-state flow sensor for seawater cooling? I know they exist. For example, there is this 24v solid-state flow sensor FS-600 No-Moving-Parts Flow Switch. I'm sure with enough fiddling (which version is the right one?, installing or finding an ntp tap into the seawater water flow stream, how do I install it such that the stainless doesn't corrode the surrounding steel, etc) I could get it to work for an n2k monitoring system but hopefully there is one already available for marine engines and someone has already figured it the best way to install it.

 

[Lepke]

Does your engine have zincs? Is the steel plumbing connected to the engine w/o hoses. If so it's protected now. Otherwise add a zinc in the plumbing and make sure all metal parts are connected metal to metal or connect them with a ground wire.