I'm installing an air conditioner above a bedroom window, but there's no electric outlet nearby. I'm to avoid running wire along the wall, and I noticed that the light fixture receptacle has an empty conduit pointing in the direction of the window. If it reaches the window (or close enough to it) I could drill near the window and put an outlet there. However, I have no way of telling if the conduit continues straight ahead or curves to somewhere. I put a snake wire in it, and it goes in fairly easily more than the distance from the light fixture to the window.
Is there any way to trace the path of the empty conduit? It's embedded in a concrete ceiling, about two or three inches deep.