Paddle wheel speed sensors, up to what speed?

[pcrussell50]

So I have this few year old but almost never used Lowrance Mark-5x, black and white screen basic SONAR. Depth and water temp were what I use it for. But it has an input for a paddle wheel speed sensor, which I bought off eBay. Question... are these only for trolling speed? Or are they good up to say 55mph plus or minus a bit? (Not looking for race grade precision here).

-Peter

[SS Minnow]

https://www.manualslib.com/manual/524521/Lowrance-Elite-5x.html?page=25#manual

[pcrussell50]

That’s for the transducer. Interesting info. But not what I’m looking for.

-Peter

[SS Minnow]

That’s for the transducer. Interesting info. But not what I’m looking for.

-Peter
That is the only way that the unit will register speed. Look at it again and it states Tranducer---Skimmer with temp sensor, which is the paddle wheel. It also registers speed in .1 increments.

[pcrussell50]

That is the only way that the unit will register speed. Look at it again and it states Tranducer---Skimmer with temp sensor, which is the paddle wheel. It also registers speed in .1 increments.

Interesting. And confusing. :confused: That 70mph speed is published in the chart for the specs of the SONAR feature. It uses an ordinary skimmer transducer with temperature, that came with the unit. Then I bought a paddle wheel that also has temperature. It is not a transducer. It’s only a speed sensor with a temp sensor. When plugged into the unit, there are two temperatures available. One from the skimmer transducer and one from the paddle wheel. I can display both at the same time.

-Peter