What is this for? Just wondering

[Polcat]

This is on the bottom of the back of the boat.. Is it dome kind of sensor?

 

[islandia-duane]

I think that's your speedometer spindle thingy

 

[philipmurphey]

Yes that is your speedometer paddle wheel. As you move through the water, it turns the wheel which has magnets in it and relays that back to the gauge in the form of MPH.

 

[Seadoobuddy]

Yup, that's correct....we call it the dream-o-meter as it's accurate to within +/- 10-12mph.

 

[Seadoosam]

Yup, that's correct....we call it the dream-o-meter as it's accurate to within +/- 10-12mph.

Well said Lol