I'm setting up my new shop and want to hook my shop vac to my miter saw. I want one of those devices that I can plug both the miter saw and the shop vac into and it will turn the shop vac on when I switch the miter saw on.

I know I've seen those things before but now I can't find them. I also don't know what they're called. Can anyone give me a pointer to one, or the name of those things?

Mike