The search for a programmable zapper is over; it's called a Thundervolt Zapper, at http://www.thundervoltzap.com.
Thundervolts search out parasites with a special hunting circuit, and when they find a pathogen, they lock onto that frequency until the parasite is destroyed. Then this fourth frequency hunter searches for a new target. (Frequency freeze)
Meanwhile, three other fixed frequencies are simultaneously putting out even more energy. All this power can be rotated throughout the body from four directions at will.
Additionally, the two waveforms of a Thundervolt are opposing; they sort of work like a shark's jaw. Any parasite, bacteria, virus, fungus, mold or toxin caught in between this electronic chomp gets crushed by multiple opposing waveforms. The four frequencies sink and source every half cycle. No other zapper can claim these qualities.