Hi, I am looking to buy a zapper.

I have looked at an American version, the parazapper, and the tendollarzapper,

and one or two uk products..

 

But I am none the wiser.....single frequency, dual frequency, square wave oscillations.....etc etc.

 

Can anyone advise?

Hi
I've just received my iZap from my brother in NZ which he makes up himself based on the Bob Beck design (YouTube Bob Beck and he'll explain it all, plus others who make up his designs).  If you can't get a straight answer from anybody, get back in touch and I'll give you my brother's contact number. You'll have to talk to him on the phone (got Skype?) as he types with one finger and would never sit still long enough to answer. He's very busy with his home air ventilation system business as well (plus inventing other amazing stuff). His zapper cleared his friend of Hep.C (been free 17 years now after being given the death sentence by the doctors), so I'd trust what he says.
Cheers, Heidi 

If you suspect that you might be electrosensitive, you should avoid zappers as they may exacerbate the condition.