Got my Deleon back today clean bill of healh But Quote" everything you described was caused by a strong source of external interference ID units are more susceptible to this ,and there are times when we have to go strictly to audio as the meter will be scrolling to the extent that is UNUSABLE." Unquote. I put in bold unusable Huh ???. I'm not happy brand new detector .screen freezing in iron reading to point I can't use it.ITS GONE I"M UNLOADING IT I was out in middle of woods before when it acted up .What interference ? allergic to TREES??? I had read that it was sensitive to EMI but this is crazy!!. And Rusty Henry the service manager looked at it at Tesoro . And this was my first Tesoro !!!!!