new school (gps) knotmeter do they exist?

[johnnyandjebus]

Hello all

I have a traditional knot-meter on my boat, the impeller works just fine but the instrument is dead. I would like to replace it with what I call a modern day knot-meter, something that has the display of a traditional knot meter, an approx 4 inch display, but get's its data from gps. Does such a thing exist?


Basically a GPS with one goal, to display land speed using the traditional knot-meter type display??

- I under stand the difference between a gps reading of boat speed and boat speed measured by a knot-meter. Boat speed over land, distance traveled, is what matters to me not thru water speed.

- I can and do use my handheld GPS for this but I would like to replace my "dead" knot-meter display with something that roughly fits the opening without having to install or use the existing impeller.


Thanks,
John

[tommays]

Speedpuck which also does wind shifts


It's round but you would have to do a bit of work to fit the hole

[johnnyandjebus]

tommays

Thanks for that, just what I am looking for. For others see;
SpeedPuck - Velocitek

I think, at 4 1/2 inches in dia i can make it work.

Not that I want to appear greedy in my request but does such a thing exist with the more traditional, needle (analog) type display?

John

[SlowButSteady]

Problem is that the Speed Puck is about the same price as a low-end chartplotter.