The Bug Zapper, a time period coined by Hulda Clark, is a cheap electromedicine system suitable for dwelling use. It is able to killing various microbes in the blood. The Dr. Beck Blood electrifier may be a better approach. A bug zapper usually cost $75 to $150. It outputs a 30KHz 9 volt sq. wave signal onto two probes which can be held, one in every hand. The probes are typically fabricated from 1/2 inch copper pipe 4 inches long. The unique principal of operation is that a specific frequency will kill a selected microbe