I guess I should ask the question: Which is the biggest fake LRL out there? Of course there is only one answer--that calculator thingy is not even an LRL. It is a fake LRL--in reality it is a dowsing rod only. It gives the real LRL's a bad name. I even wonder if it is a skeptic hoax. Just a baited coat hanger will have more accurate discrimination. I know because I own one. These units are being pushed by aRT on t-net and I even wonder if he is really the company owner. The same company sells one of those cheap frequency generators on a swivel handle. You can buy it for $50 on ebay and they advertise it for $1200.