I have a lightly used Fischer MD-2 unit for sale. I bought it new from Fischer for my daughter's hands. Just as she was noticing a difference she said she didn't want to use it any more, that she hated the feeling (she was 14).
According to the directions, you start out at a low current and build your way up to the theraputic currents. I think she was too little for it, however she was starting to notice less palm sweat.
I'm ASKING $750 and will ship it free within the continental USA.