There are several decent units that cost less than $100 (or so I was told when I asked my physical therapist the price range if insurance didn't cover it).
You can google "Tens Unit" and get several reputable sites that will send you a unit (insurance or no insurance) as long as you have a valid script.
Definitely worth looking into, even if only to see what kind of unit you might prefer!
Wow, that is very cheap compared to what I was thinking of.
If I get the ok and fitted for one, I will certainly describe my experience with you all in a seperate thread. If anyone is interested.
I will focus its use mostly on my lower back, hip, and left leg pain.