So who has them? Were they worth the money? What did you pay and where did you get it?

I am real interested in getting one of these but would like a few opinions before I spend the 80 bucks on one.

Thanks.

 

ESR

 

I have the ESR that Bill posted the link to.
Its the only one worth having, because most only go to 220degrees, and the DS operating temps are as follows:
Thermostat opens at 185, fan comes on at 203, red warning light comes on at 239.

I love it, and the gauge is replacable from the body, so if you trash it in a wreck you don't have to buy the whole thing again. Its very convenient - you retain you warning light, and if it ever comes on you can take a quick peak down at the gauge to determine if it is a cooling issue or oil pressure issue. Worth the $80.