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I had one for awhile on my sailboat, and I got rid of it. It's
finicky about the voltages used by the attached instruments.
Specifically it is not compatible with Raymarine. Other than the
compatibility issue (and the relatively high price), it seemed OK,
though I never really calibrated it, so I can't answer to its
accuracy. I'm sure it's accurate enough for a trawler. :-)
On Fri, Feb 15, 2008 at 8:55 AM, John & Liz <> wrote:
> Hello all,
>
> I'm passing this on for a friend who is crusing and has no Internet access:
>
> "I'd like to ask a research favor from you as well. It looks like our
> speed transducer crapped out. Airmar makes a non-paddlewheel transducer
> that works off of ultrasonic signal (I think) measurements of small
> bubbles and particles in the water. This new style has been out for several
> years now and I'm wondering if there are any rumblings about it, good,
> bad, or indifferent. Not having to clean a paddle wheel would be nice,
> but not if the sensor doesn't work for well."
>
> The Airmar unit he's referring to is the CS4500, http://www.airmartechnology.com/airmar2005/ex20/RMProducts/ElectCat.asp?ProdID=68&Man=All&PageNo=131
>
> Any input will be helpfull.
>
> Thanks,
>
> John
>
>
> ---------------------------------
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