hello i was out having a swing and went to use my pinpointer switched it on and ran it over the area no beaps thought the item must be to deep for it dug up some dirt and tryed again no beaps so tryed it on my screw driver and it was not working turned it on and off about 5 times and test each time and was not working then tryed agian started to work. has any one else come across any thing like this before or do i have a faulty pinpointer , id thought it maybe a low battery but the destrucions say the led 3 times, but the led stayed on, hope its not dodge id hate to be with out it. 8.(