http://huldaclarkparazapper.com/cgi-bin/cart.cgi/my_3_instructions.htm?mv_pc=cz

Parazapper my-3 looks pretty awesome, it includes rife frequencies. Cost about $400, and are made to order. U can check out the Zapper Support Forum also. If i had the $ I wld definately give this zapper a try.

Ideally i would choose a device where you can set a precise frequency (with 1Hz precision), a precise duty cycle (with 1% precision), have a minimum voltage of more than 0V (the "positive offset"), have a maximum voltage of 9V or up to 45V, have a maximum allowed intensity of 20mA or 30ma (depending on your electric sensitivity), have a protection of the device if the 2 electrodes touch, have a sharp square wave.

This will allow to do different experiments with different signals.


Don't be fooled by some zappers/frequency generators sellers who claim that they provide Royal Rife frequencies (in the mhz range), some provide John Crane frequencies and CAFL frequencies (in the hz and khz range), and from what i have seen, these frequencies have not been verified to be effective to kill specific harmful organisms, they are based on vague experiments or vague claims. Be careful about zappers/frequency generators sellers, they use vague suggestions and unjustified claims to influence people to buy their devices at high price by adding functionalities which are useless or based on nothing but their words.


If you want to go cheap, i would choose a device with a frequency of around 1000Hz or around 2500Hz, 50% duty cycle, minimum voltage of more than 0V (the "positive offset"), maximum voltage of 9V, have a protection of the device if the 2 electrodes touch, have a sharp square wave.


Also the electrodes are important, you want to choose electrodes which are conductive enough (copper, stainless steel, conductive clothes)

does a zapper make pulses that you can feel or how do you know it's working other than the green light thats showing????