What is this electronic device? Not the pyramids in front, but the smaller thing in the middle, with the white line on one side. The white line is a piece of foam, sticky foam I think. It's almost an inch long, and a half inch wide and it has what looks like a small clear light bulb sticking up at one end. It has black 2-conductor wire connected at one end, and the wire has a plug on the end. You can see the plug too, just to the right of this thing.
formatting link
I bought the whole thing, and the seller thinks its something but I don't think so, or if it is, there is no reason for it to be sold with the powermid, which has a sensor in the pyramid. So what is it?