The bug detector is an unused gadget, it has no image or statistics assigned to it. Presumably it would have been used to detect a bug. With bug detectors you can be safe that no one has bugged you. There are a lot kinds of detectors today. In my opinion the cheaper the better. I have found one page on internet that has very low cost but good bug detectors. Just visit Bug Detectors and see. I bought the pencil bug detector and it's great