Frequently Asked Questions about the Hulda Clark Zapper

What is a zapper? A "zapper" is defined by Dr. Hulda Clark as a battery operated DC pulse (positive offset) generator with an output amplitude of 5 to 10 volts (open circuit) and a frequency between 10 Hz and 500KHz (10 to 500,000 pulses per second), with a current limited output and a 0.25 volt constant offset. The Auto-Zap zapper puts out 2500 DC pulses per second with full 9 volt battery voltage, through a 1000 ohm current limiting resistor. See more here.

What does a zapper do? How does it work? According to Dr. Clark's research and our personal experience, the tiny zapper current subtly energizes the bloodstream. This enables the body to "take out the trash," including parasites large and small, bacteria and most viruses. It happens quickly, in about an hour. The white blood cells digest the dead invaders and they are flushed out via the kidneys. In Dr. Clark's most recent edition of "The Cure for HIV and AIDS," she notes that the zapper gets white blood cells active despite the presence of toxins that usually put them to sleep. See more here and here.

Does the Auto-Zap have negative pulses coming out? No, none whatsoever. It fully meets Dr. Clark's specification for a "positively offset" DC signal. Every single Auto-Zap is tested on a digital oscilloscope to ensure correct output, with only positive pulses. I have tested two zappers from good manufacturers that had both positive and negative pulses. Dr. Clark says: "The maker must assure you that [the zapper] has been checked on an oscilloscope and not even 1% negative voltage found." This is important because "if the varying voltage becomes NEGATIVE, even momentarily, it supports and maintains [the parasites'] lives." (The Cure for HIV and AIDS, page 71)

As the designer, manufacturer and a professional engineer, I certify that there is never a negative voltage output from any Auto-Zap zapper, and that we verify this on a digital oscilloscope for every zapper we sell. Here is a typical Auto-Zap zapper output displayed on an oscilloscope. Note that the black "square wave" line never goes below the zero volt line (blue arrow):

Is it safe? Yes! Zappers have been used by hundreds of thousands of people of all ages for more than 15 years, with no harm reported. You may feel worse at the start as the parasites die off, but this is usually gone within ten days. Dr. Clark recommends against using the zapper during pregnancy, or if you have a pacemaker. To zap safely during pregnancy, use the "Leg Zapping" or "Arm Zapping" method described below. You may find that the benefits of zapper use make it a good choice in helping you and baby stay healthy. See the special "Leg Zapping" notes below for safely zapping with "smart pacemakers" and ICD's.

Is it safe to zap if I have a pacemaker? Standard pacemakers are fine with the zapper. But modified "Leg Zapping" contact arrangements are needed for two new devices: Implantable Cardioverter Defibrillators (ICD's) and "smart pacemakers." These devices "listen" to the electrical signals put out by the heart muscles. When it detects a high-frequency signal above the normal "heart signal" range of 10-100 Hz, the ICD is set to interpret it as fibrillation, and to correct it by a massive jolt of electricity to restart and synchronize the fibrillating tissue. If an AC current of 1000 microamps or more (and even as low as 200 microamps in some cases) is applied to the torso, it may be detected and wrongly interpreted as fibrillation, with the resulting defibrillation signal jolting the heart muscle needlessly.

Even though Hulda Clark zappers always put out DC pulses, the induced currents may appear as AC inside the body to the ICD trigger detector, and can cause these unwanted defibrillation pulses. If you have an ICD, DO NOT USE A ZAPPER HAND TO HAND. USE THE "LEG ZAPPING" or "ARM ZAPPING" APPROACH BELOW to prevent current from entering the torso.

There are also new technology "smart pacemakers" like the Medtronics EnPulse that watch the heart's natural signal, intervening or "pacing" only when needed. They are unlikely to have a problem with the zapper current because they monitor the 10-100 Hz frequency band. However, if they do detect zapper current as a stimulus, they will produce a slow pacing signal that may interact with the heart's natural pacemaker output to give a surging sensation as the heart rate varies. In a small group, about 5% of users, it is possible that this slow pacing signal could cause a type of fast heartbeat that could cause serious problems.

The standard way to handle and assess these risks for "smart pacemaker" wearers is for the patient to bring the zapper to their cardiologist's office, and apply the zapper current in the usual way while monitoring the smart pacemaker's output via its built-in telemetry link to the doctor's computer readout. If there is a problem, it will show up clearly as arrhythmia or other abnormality. If no effect is observed, the doctor can then increase the trigger sensitivity of the implanted device with his remote programmer, and see how much safety margin exists for this patient before problems appear. If the zapper does not cause an effect with the sensitivity raised one increment from its programmed setting, it is regarded as having an adequate margin of safety, and may be safely used. In any case, you may use the "Leg Zapping" or Arm Zapping" methods below to safely enjoy the benefits of zapping.

What is "LEG ZAPPING?" and "ARM ZAPPING"? Leg or Arm Zapping is a way to zap that will keep zapper current out of the torso of the body, including the heart. This will prevent possible problems with the new ICD and "smart pacemaker" devices, and with zapping during pregnancy. Dr. Clark says that the idea with zapping is to put the tiny zapper current through a maximum of blood flow, to energize the white blood cells efficiently. I believe the safest way for those with ICDs or "smart" pacemakers to zap effectively is to hold one handhold in your hand, and tuck the other handhold under the armpit on the same side, preferably the right arm. For use with SuperStraps connect one at the wrist and the other to the upper arm on the same side. This causes the current to intersect the major blood flow of the large arm arteries. For leg zapping use a footpad on one foot, with a conductive band (or modified footpad) around the calf or thigh of the same leg to keep the zapper current out of the torso completely, while making the current intersect the major blood flow of the large leg arteries. Call us at 888-533-7007 if you have questions about this.

How often should I use the Auto-Zap zapper? Dr. Clark recommends zapping at least one full 63-minute cycle daily for the first month, and at least twice a week after that. I myself use it every other day for maintenance. At her clinic she has patients zapping for eight hours a day. Our Auto-Zap instructions cover other application hints, and we are as near as your phone with toll-free support. Our free ZapTimes newsletter will keep you up to date: click here to subscribe.

Where can I see the Auto-Zap zapper instructions? Click here for full instructions.

How does the Auto-Zap compare to the others available? Click here to see our exclusive Hulda Clark Zapper Comparison Chart. Auto-Zap zappers go much farther than the circuit in Dr. Clark's books (which is in 95% of the zappers offered on the Web). I use and recommend the Auto-Zap 5 super-fast zapper for these reasons:

• 5 minutes and you are DONE zapping! it is the fastest zapper ever built, so everyone can find time to zap every day
• it is fully automatic with five precise cycles. The crown jewel is the super-fast 5 minute cycle, 12X faster than any other Hulda Clark zapper. It also has two timed cycles for zappicating your food or body, a 60-minute constant cycle and 63 minute cycle as recommended by Dr. Clark
• the positive offset output is guaranteed. Every Auto-Zap zapper is checked on a digital oscilloscope
• it gives over 1000 fast-zap cycles on just two AA cells. This is much longer than any other zapper (32 months if you use it one cycle per day)
• it has a failsafe sensor LED light to show when you have good contact and proper connections
• - it is ruggedly built with full protection against static electricity and reversed battery damage
• - it has a beeper to tell you when it is turning the pulse output on and off (so you don't have to hold the hand-holds during the 21 minute rest periods)
• - it has an automatic battery load test every time you turn it on

No other zapper offers all these features. We give a full 5 year warranty, with a three month 100% money back guarantee. And our price is right. Order your Auto-Zap here.

What are foot pads? Foot pads are a pair of contact plates about 3"x 12" made from aluminum kichen foil or flat sheet metal (22-26 gauge). They are held by the copper alligator clips on the Auto-Zap wires. Fold a paper towel on top of each pad, then dampen them with about a teaspoon of warm water. Place your feet on top of the plates and hit the Start button. Foot pads work well as you use a computer, read or watch TV.

Dr. Clark endorses foot contacts: "Using foot electrodes helps greatly for both plate-zapping and regular zapping." (page 506, Cure for HIV and AIDS). We include simple instructions for making your own foot pads from aluminum kitchen foil. It only takes 30 seconds.

Do you supply footpads? We do not supply foot pads with the Auto-Zap because they cost more to ship than to obtain at a local sheet metal shop. Use aluminum kitchen foil to test the concept, and for traveling.

What about AC adapters instead of batteries? A friend wrote, "I am interested in your zapper, but I read another zapper info page and got confused. He claims that using an AC adaptor (and his power supply circuit) is better than using a battery. Help."

Dr. Clark is adamant about battery power for safety, and I agree. The higher output voltage is not an advantage either, according to Dr. Clark's research: she specifies 5 to 10 volts. On page 15 of her book, The Cure for All Diseases, Dr. Clark states:

"Subsequent testing showed it [the zapper effect] was not due to some unique design, or special wave form produced by the device. It was due to battery operation! Any positively offset frequency kills all bacteria, viruses and parasites simultaneously given sufficient voltage (5 to 10 volts), duration (seven minutes), and frequency (anything from 10 Hz to 500,000 Hz)."

I think the reason some like AC power is that it stops battery life complaints from customers. We took a different route. We made the Auto-Zap 5 so efficient it gives you 1000 fast-zap cycles on two AA cells.. With ZERO risk of AC shock!

Should I still take the herbal parasite cleanse if I have an Auto-Zap? You certainly may if you wish. The black walnut tincture is good for clearing your gut quickly. With the zapper alone it takes longer. If you have a serious concern, by all means take the herbs as well.

Are the kidney and liver cleanses safe if I'm zapping? Yes.

What does the price include? We include the Auto-Zap generator unit with fresh 9 volt alkaline battery, sturdy industrial wires, instructions and copper pipe handholds in a die cut mailer box with foam inserts.

Why are some "zappers" cheaper than the Auto-Zap? Because you get what you pay for. The Auto-Zap is a fail-safe, fully automatic, rugged, efficient unit with a 3 month 100% money-back guarantee, and no hidden restocking or "refurbishing" charges. It is a tested and guaranteed lifetime purchase, not a disposable.

Can you give me a list of ailments/detoxifying/general health maintenance for which this machine is suitable? See Dr. Hulda Clark's book, "The Cure for All Diseases," for a full listing. Her basic conclusion is that the zapper is an excellent general tonic and prophylactic (preventative) tool.

Is the zapper like a Rife device? No, the Rife "pad type" devices such as the AstroPulse Model D and others are simply overpriced ($1295-2995 US) AC signal generators. They do not "zap", because they do not put out DC pulses like the Auto-Zap zapper.

By the way, note carefully the "Money back guarantee" AstroPulse offers: you get 75% of your money back if you return the unit within 30 days. They keep 25% of your money (enough to buy several Auto-Zap zappers!) for "restocking." We give you 100% of your money back if you are not delighted with the Auto-Zap.

What is the best time to zap? Any time is fine. I usually zap with foot pads first thing in the morning as I read my Bible. Sometimes I put the foot pads under my desk at the computer. If I am too busy in the day, I grab the hand holds as I go to sleep, and hit the Start button. Find a way that works well for you.

Will they let me through airport security with a zapper? We always take our Auto-Zap zappers along on trips, and have never had a problem. You might want to put the unit in your checked bags, but I carry it on. Lyn and I find the aluminum foil footpads convenient for travel, as they are easy to pack and weigh almost nothing.

Can I use the zapper while taking antibiotics? Yes, it does not conflict.

What is "plate zapping"? Recently Dr. Hulda Clark has announced that the effect of the zapper can be intensified and targeted to specific parasites in specific organs by "plate zapping." A box with one or two metal plates on top is connected to the positive lead of the zapper, and slides of the parasite and target organ are placed on the plates. See the new "Prevention of All Cancers" and "Cure for HIV/AIDS" books for more details. You can make your own plate box as described in the HIV/AIDS book on page 517.

If a known pathogen was in a known body part, would it work better if the hand-holds were nearer that body part instead of hands? It might. Dr. Clark's recent work suggests that the zapper effect can be intensified or localized by "plate zapping" - see above.

Do you recommend using damp paper towel around the hand holds, or to hold them as they are? Yes, please wrap them as we instruct you. DO NOT hold the bare metal, as the electrical signal could drive metal ions into the skin. Always use at least two layers of paper towel.

Does it hurt to put the hand-holds on other parts of the body instead of using hands: is it as effective using it on arms, chest or abdomen, legs or feet? The effect seems to be systemic via the bloodstream, but feel free to experiment. Try to get at least four square inches of solid contact area on each contact point to prevent skin irritation.

Do you give full instructions re frequencies used for each health problem? The single frequency we use is all it takes. According to Dr. Hulda Clark's latest research, the zapper stimulates the bloodstream and immune system in a subtle way, enabling your own body to "take out the trash", including parasites, bacteria and most viruses. The pulses from the zapper do not electrocute anything, as they are a safe low-voltage and low-current signal. Click here to see the Auto-Zap instructions.

Does it actually destroy malaria or merely 'stun' it for the body to remove normally? See above. We have had many units in the tropics, and two doctors with a Big-Zap in India. Users say it has helped the body clear up and prevent malaria beautifully.

Does having metal anywhere in the body (such as crowns on one's teeth) affect the benefits of using the zapper? No, because the zapper stimulates the bloodstream and immune system, according to Dr. Clark's research.

Are there any long-term side effects from long-term electrical current use on the body? One hears of clusters of child cancers in areas close to major power lines, for instance. None have been observed or reported, as far as I know. Power line effects are due to high strength alternating magnetic fields, while the zapper uses very weak DC current pulses similar to natural nerve impulses. The Auto-Zap has been used successfully with tots as young as 1 month ( to deal with a nasty case of thrush in short order).