It is not marketed as a long range locator. I have an earlier version called the Cache-Pro CP-200. It is not auto tuning like the Cache-Pro Delux. If you tune it to where it's barely giving a signal, kind of scratchy like a geiger counter, it will go quiet on ferrous objects and squeal on non-ferrous. So it shows you exactly where the object is, and if it's ferrous. I can't count how many round steel caps, electrical box knockouts, and other pieces of round rusty steel it has saved me from digging. I don't know if the new ones can give a low versus high tone or if they just remain silent until they approach a non-ferrous target. My only complaint is that the manual tuning is very touchy. the slightest movement of the dial changes it from full silent to full scream. The sweet spot is a pain to find. The squeal frequency is pretty annoying too. I often pre-poke the hove with my brass probe to save wear and tear on the Cache-Pro probe tip, although it's supposed to be super hard. Otherwise it's an awesome device which has saved me countless hours. As far as I know it's the only stand-alone discriminating pinpointer available. As for apparent sketchy quality it's built better than it looks. Mine has been trouble free for years, and I bought it used.