trader_4 wrote, on Wed, 31 Dec 2014 17:52:16 -0800:

IDK what flame sensor you have there, but from the dimensions it looks
like it's a foot or more long, 1/2" in diameter and certainly not for a typical
home furnace. The one Danny has pics of does look like a small rod,
mounted on an insulator, connected to a wire.

The one I have is only a couple of inches long, and maybe
something like 1/8 of an inch in diameter of the rod itself.