http://www.iproducts.ws/thoughtstream.htm
If you think about it, treasure hunting and dowsing are near opposites. You tend to get excited with the thought of striking it rich. It's hard to relax when you are at a suspected treasure site. If you are like me, you carry loads of gear at a fast pace. It takes twenty minutes to calm down even without any thoughts of treasure.
The ThoughtStream is not a dowsing device. It is a device to help you control your emotions/stress.