I'da used parazappers but I bought the scada RSG-4 7 or 8 years ago, before I was spending much time here, and didn't really know about him.
The scada is just a zapper, no bells or whistles, except for the electronics in the handhold where I couldn't drop them and it has a sweep function, which I never used. Not too badly priced and they have friendly customer service.
Like ANY regular zapper, as Dr. Clark notes (the expert on zapping), you need to use the herbs she recommends as well. She knew her son's version, which he had just invented, wasn't the best possible. It was sometimes not able to get deep into the bowels, which is why you need the herbs, which do.
I'm sure she'd be delighted with what parazapper's done. But my regular old zapper helped immensely to kill the cancer carrying parasites for me. Now if you aren't dealing with the fungus (cancer) they're infected with, then yeah, kill the beef liver fluke, and the fungus they're carrying moves right over to you she talks at lenght about this). If you're already borderline ready to display symptoms (a tumor or something), that bit more from the dying parasites (because you probably have loads of them) may add enough fungus, that you become symptomatic.
But for sure, it nor any other zapper is a 'cause' for cancer. And that zapper comes standard with a couple sets of fitted cloth hand hold covers (they aren't idiots and knew you shouldn't hold on to bare metal). I'd hardly want to toxify myself with any metal like that, although I did try one of those penny ones, I confess, and didn't get much in the way of zapping--the field was too localized and required moving around, Plus it kept giving me these little electrical burns. I'd definitely not recommend that one.
Across the years, I've tried quite a few and even got a zapper which was capable of generating the frequency of fungus, and that helped tremulously, too.
The regular zapper works because of the battery wave shape, not frequencies though, so it is minimally helpful with pathogens like fungus, I've discovered through personal experience. Dr. Clark used the zapper for that, though. But I don't think she knew about herbs. They are so much faster at killing pathogens, unless you have the zapper set (as parazapper's will) to the right frequency.
If you read Dr. Clark's work, she explains all that. She explains a LOT of stuff that I've discovered is totally true. She was the expert about parasites and toxins. She self-edited, so it can be a bit of a chore to find stuff, but well worth it.
But parazapper's totally right.Posts about success at healing can really bring out the pharmaceutical cartel's employees here aka trolls. They're being paid to refute any method that works which doesn't involve gobs of the cartel's product, and actually gets you well enough to not need any drug or supplement any more.