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Shoot thru hull ducer setup and temp guage

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Shoot thru hull ducer setup and temp guage

Old 03-22-2003, 07:03 PM
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Default Shoot thru hull ducer setup and temp guage

I oringally posted this in boating, thought I'd try in here as more appropriate.

My new boat has a Garmin 168i combo sounder with the ducer epoxied inside the Kevlar hull. On my first outing I didn't think to check out the temp reading (too much else to think about!) The manual says in this setup it will read the hull's temp, which makes sense. Anyone have any experience with this setup and if so how accurate is the temp? I figure it's got to be very close to water temp, or at least close enough. Thanks!
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Old 03-26-2003, 04:26 AM
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Default Shoot thru hull ducer setup and temp guage

Last time out temp seemed to work just fine. Did not have another source to check it by, but my readout agreed within one degree of what the fishin reports said lake temp was.

old fishermen never die, they just smell that way
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Old 03-26-2003, 05:45 AM
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Default Shoot thru hull ducer setup and temp guage

When you take a transducer and use it as a shoot through if it is one that has temperature capability you loose any usefulness that feature would have provided for fishing purposes. The reason is that you can think of it as not giving you the current water temperature but actually giving you something more akin to the average of water temperature.

What the sensor will be reading of course is the hull's temperature, which will change slowly over time as the outside water temperature changes. Unfortunately in a fishing sense water temperature is more often though of as important in that is shows rapid changes. That is something you will never get from a glue-in application because no hull will heat up, or cool down, quickly and so you will be well past the actual temperature break befoe the hull starts to SLOWLY either heat up or cool down - making the information next to useless for finding fish.

That leaves you with either a worthless temperature guage or in need of a seperate sensor for the purpose of sensing temperature. Dytek will be more than happy to give you very accurate real time temperature, but it will cost you a couple of hundred bucks to get it. Of course you could have done the right thing in the first place and got a true Thru-hull (I just said that to beat Birdman to the punch).


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Old 03-26-2003, 08:41 AM
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Default Shoot thru hull ducer setup and temp guage

Thom is 110% correct. If temp is important to your fishing success, then you need a through hull sensor, either alone or embedded in main tranny which is thru hull. A great looking idea is AirMar's new( available soon) tilted element transducer which also will be available with temp embedded according to the web site. This should make thru hulls a piece of cake for most boats. Good Luck D2
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