GPS Speedometer Gauges ?

[FM Keller]

Looking into some for the new dash, seems as I talk to some prerunner guys they swear by them, The MFG of course tell me they are the CHIT! The install is easy the antenna is behind the dash or you can mount it out side too.
Has any members went this way on the speedo gauges, I am liking the idea due to I am planning different tire sizes for Dirt, Road, Sand and not having to re-calibrate really sounds nice.

Showing a Speed Hut GPS Speedo
https://www.youtube.com/watch?v=GgHV3v7ZYDM

 

[beags86]

Been looking at these as well. Would like hear any input.

 

[ktmoutfront]

I don't use gauges, but I use my Lawrence Baja receiver as my speedometer. The only issue is in deep canyons. Nice rhing is, no change when regearing or changing tire sizes.