Hello all, first day on the site and just registered. I picked up a couple of Garrett seahunter XL500 pulse detectors today, have not tried to do anything with them yet. what I do not know any history on them but both cases are pretty well trashed, cracked like they are old and been sitting in the sun, insides look good, I am going to see if I can connect a battery to it and see if it will fire up. anyone know where I can locate cases if the do work? also anyone know the age of these units?