I use a small lightbulb wired from live to ground on a plug. Plug it
into an outlet and if the flashes briefly, you have a GFCI circuit.
If it doesn't come on at all, you've got an open ground.

PlainBill

On Sun, 22 Feb 2004 23:48:35 -0600, THE Old Man
wrote:

I have an electric outlet on my patio. Is there a way to tell if it a
GCFI or not?

Thanks,

dd