"Jerry Albro" wrote in message
news:gm%Pe.1194$Re1.222@trndny04...
My very old (Sear I think, came with the house) opener has a low voltage
source, active when the door is open. I was able to light an LED with
it, so I ran leads for the LED and for a momentary contact switch to the
wall inside the house, so I can easily open/close the door and see the
status light.

Let me know if you are interested, and I will run outside and review
what I did. It's a few years ago, so I can't quite remember.

- Jerry


David Cook wrote:
Anyone ever seen any of the garage-door-opener makers that
provide terminals so that one could attach an external indicator
light that would then light up any time the garage door was
open?

It's not very wise to operate an overhead door based only on the status of a
light. You should be able to see the door, anything or anyone that may be
under it before pressing that button...

Rich
http://www.garagedoorsupply.com