Biotrohn® The best zapper on the market

Introduction: The evolution of the frequency generator

In 2006, we started the development of the Super Ravo Zapper frequency generator, initially intended for home use. 

However, in just two years, the device achieved overwhelming success, placing us among the most prominent zapper manufacturers in the world. 

Since then, we have continued to research and refine our product, resulting in the Biotrohn frequency generator, a much more advanced and effective device.

Medalab Zapper frequency generator Biotrohn

What is biotrohn? Features and advantages over other devices

The Biotrohn is a microvoltage electrical signal generator with variable frequencies with the possibility of fluent frequency change for laboratory purposes and therapeutic aid in medical treatments.
This device can help our body function better and also eliminate a number of pathogens.

Biotrohn vs. Ravo Zapper

Unlike other models on the market, such as the Super Ravo Zapper, the Biotrohn has the ability to program optimized software for each frequency range. This means that the device is uniquely tailored to each individual and their specific needs. In addition, the Biotrohn has 135 specific programs to eliminate viruses, bacteria, parasites, fungi, detoxification, the lymphatic system, chronic diseases, etc.

These programs actively act as an important aid in your treatment. From chronic illnesses to minor disorders, the Biotrohn is capable of addressing a wide range of health concerns in an effective and non-invasive manner.

These characteristics make it the best professional zapper on the market, with testimonials from our clients that guarantee its effectiveness.

Zapper frequency generator Biotrohn

How the Biotrohn works: The science behind the device

The Biotrohn introduces negatively charged electrons through the skin into the living tissues of the body, killing parasites by reversing the polarity. They also help heal diseased tissue, since healthy tissue is negatively charged. In essence, the device emits a series of low-frequency electromagnetic waves that act directly on the cells of the human body.

Biotrohn benefits for your health and well-being

These waves help stimulate the body's natural self-healing process, strengthening its ability to fight infection and disease. In addition, the Biotrohn can also help reduce stress levels and improve sleep quality. If the right programs are chosen and used correctly, frequency treatment can offer very fast results. Benefits have even been reported after just one application.

The Biotrohn is a one-of-a-kind device that offers a wide range of health benefits. With its suite of ailment-specific programs, it is a powerful tool for those looking to improve their well-being in an effective and non-invasive way.

Biotrohn and Plasmatrohn with Andreas kalcker.

We spoke to Andreas kalcker about the function and the differences and the proper use of these devices. 

Biotrohn® The best zapper on the market

Experiences with Biotrohn

This is how the Biotrohn helps people, improving their quality of life.
Real cases



The best microfrequency generator
925 €
  • (TAXES NOT INCLUDED) You will see the price with taxes included when you select your country on the purchase page.
  • 135 programs for specific pathogens
  • Reduces stress and improves sleep quality
  • Advanced technology based on natural biophysics


Our teams are not clinical, so they will never replace medical treatment. On the other hand, what we have been able to verify is that the people who use it notice considerable improvements in their state of health and value the Biotrohn as an important support in their treatment. 

We cannot generalize treatments since the origin of the pathologies depends on many factors (genetics, diet, habits, emotional management, anxiety, stress...) so the programs that work for some people do not have to work for others.

That is why it is a matter of experimenting until you find the programs that work best for you.

To select the right program, we start by identifying those that match the diagnosis provided by the doctor or therapist. It is useful to use several programs that cover a wide spectrum of frequencies, since there are often similar symptoms with different origins. By expanding the scope in this way, the effectiveness of the treatment is increased.

If you are not sure which program to use, it is advisable to start with the general programs located at the beginning of the list, such as: Detoxification, Acidosis, Genériko Aluka, Lymphatic System, or Wellness programs, such as Universal Frequency, Harmony Internal or Mental Clarity.

It is important to mention that the frequencies can overlap, which means that the same program can be effective in treating various ailments, or that a wrong diagnosis causes the indicated program to not seem to work. However, sometimes when trying a program that is apparently unrelated to the diagnosed ailment, the user can perceive the frequency of the electrodes in a very intense way, above normal. This could indicate that the selection of the treatment program has been successful and that the body is reacting to the frequencies of that program.

We have developed 135 programs dedicated to specific pathogens and vibration states. You can consult the Full full list of these programs here.  

Yes, it is possible to use the Biotrohn in combination with other medical treatments. In fact, a wide variety of people have reported an improvement in their condition when they have used the Biotrohn in conjunction with other therapies.

To date, no significant side effects associated with the use of the Biotrohn have been reported. However, it is possible to experience healing crises or Herxheimer reactions during the process of detoxification or fighting an infection. These reactions may manifest as fever, flu-like symptoms, headache, muscle or joint pain, sore throat, malaise, sweating, chills, nausea, rash, swollen glands, low-grade fever, swelling, diarrhea, or constipation, palpitations, slight increase in blood pressure, skin symptoms, oozing pus, or other symptoms, such as well-being or happiness.

These reactions indicate that toxins, parasites, fungi, viruses, bacteria, or other pathogens are being eliminated faster than the body can handle on its own. The main difficulty with the Herxheimer reaction is that people often stop the treatment that caused the reaction. However, there is no reason to be alarmed. It is recommended to stop treatment for 1-2 days and, after the body has recovered, continue with the programs that caused the healing crisis until the symptoms disappear.

It is important to be cautious when using the Biotrohn in certain populations, such as people with pacemakers, pregnant women, and infants. Although no specific experiments have been conducted with these groups, it is recommended not to use the device on them, as there may be unknown risks or adverse effects. It is always advisable to consult with a health professional before using any device or treatment in special cases such as these.

Not necessarily. The equipment may be working correctly.

It happens that in many programs, especially those related to viruses, the frequencies are so low that the sensation of "tingling" is not experienced, even when the intensity is increased to the maximum (100%).

It is advisable to use the device for a while and be attentive to the reactions that your body experiences.

Generally, it is recommended to use it 1-2 times a day. In acute cases, such as an inflammatory process, it can be applied up to 3 times a day if necessary. It is crucial to maintain a daily routine for the first five days; subsequently, the person can be treated on alternate days as they progress in their recovery process.

Frequency treatments should be performed, preferably, lying down and in a state of maximum relaxation. The long-term duration has no limits and its use can be continued according to the well-being of each user, especially in pathologies considered "chronic".

This does not imply that applying the treatment more times guarantees better results. In fact, a single application in a relaxed and harmonious environment is more effective than using several programs in a row in a hectic environment while the user is distracted by other activities (such as working on the computer or using the mobile phone). In general, the treatment is often considered finished when the user is recovered and can perform their daily tasks without problems.

If the right programs are selected and used correctly, frequency treatment can deliver quick results. Benefits have been reported even after just one application. However, in general, the obvious benefits usually manifest themselves after a period of use that varies between one and several weeks or months.

Here's a general example for those who don't know how to get started. Each person must experiment for themselves and find the frequency that favors their well-being.

For 6 weeks: Perform daily sessions using the treatment program(s).

For 3 weeks: Apply it for 5 days and rest for 2 days.

For 3 additional weeks: Sessions 2-3 days a week.

Caution: It is important to remove jewelry, rings, watches and other metallic objects to avoid reducing the effectiveness of the device.

Generally, the electrodes are placed on the hands and feet, except when the pain is located in a specific area of ​​the body. In such a situation, the electrodes are located directly on the affected area. If the pain is in the region below the navel, the electrodes can be placed on the ankles or on the soles of the feet.

CAUTION: When placing the electrodes in areas other than the hands and feet, it is essential to keep in mind that the skin may be more sensitive. This could cause burns if the intensity of the treatment is increased too much. To avoid this, it is necessary to ensure that the process is always comfortable, not excessively increase the intensity (try gradually in different sessions) and remove the device if burning or stinging is experienced, repositioning it in another area.

When sitting, it is important to insulate your feet from the ground by wearing shoes, a plastic sheet, or a wooden plank. On the other hand, when lying down, there are no insulation problems with the ground, which makes this position the most recommended for comfort while using the equipment, especially considering that many programs are long-lasting.

To address pain in very specific areas, you can choose to place one electrode in one hand and the other directly on the affected area, such as the hip, knee, back, among others.

The appearance of these devices on the market has generated a true revolution, since they offer comfort by being able to adhere to different areas of the body and provide relaxation without the need to hold the electrodes manually.

It is crucial to remember the importance of using them carefully at first, especially on sensitive skin areas. During the first uses, it is recommended not to exceed 30-40% of the power of the equipment to avoid burns or redness. The experience should always be pleasant and not cause discomfort or burning.

Its use in the neck and head area is not recommended.

The only disadvantage of these devices is their disposable nature, with an approximate duration of 1 to 2 months. However, by using conductive gel, its useful life can be extended up to 5-6 months, depending on the frequency of use.

Regarding the polarities, it is suggested to place the blue electrode (negative pole) in the right hand and the red electrode (positive pole) in the left hand or in the area where the pain is located. However, there are users who have reported good results when using the polarities in reverse. Therefore, the option of testing both configurations and selecting the one that best suits each particular case can be considered.

To clean the electrodes, the best option is dry sodium bicarbonate, rubbing with a cloth.

When a message appears on the screen or beeps are emitted, this does not indicate the need to connect the device to the mains. This can happen if the hands are dry, there is dehydration or low mineralization in the person. It is essential to maintain good hydration before and after the sessions.

It is important to ensure that the electrodes are correctly connected to the cables and to the plug, with the gold part fully inserted into the device.

Beeps are often indicative of a poor connection between the electrodes and the user. To solve this problem, the following tips can be followed:

  1. Use conductive gel to improve conductivity, both with electrodes and with adhesive patches.
  2. Hold the electrodes firmly at first, especially if they are cold, and loosen them once the connection is established.
  3. Adjust the intensity to the most comfortable level to allow a better passage of current.
  4. Try several days in a row with the "Universal Frequency" program to improve connectivity for users with connection difficulties. In extreme cases, it may be necessary to use it for up to a month.
  5. Make sure to maintain permanent contact between the electrodes and your hands or skin. If the beeps continue, moisten your hands with seawater or salt water to improve conductivity.
  6. Wrapping the electrodes with a wet wipe, which can reduce the amount of longitudinal waves and increase scalar transverse waves. The water must be from the sea or contain salt.
  7. Immerse an electrode in a container of salt or sea water to increase effectiveness.
  8. If after following these steps the difficulties persist, it is advisable to wash the hands or feet (as appropriate) with salt or sea water.
  9. We have a video on this point on our FAQ page. 

It is necessary to charge the battery for 8 or 9 hours continuously to ensure a full charge. Although the screen may indicate that it is 100% charged after 5 minutes or 2 hours, this information is not accurate. When you start using the device, you will notice that the battery does not last as long as expected.

Undercharging can shorten battery life, so full charges are always recommended to maintain optimal performance.

In order for it to show the battery status, it has to be running and with a program in progress.

Then just press “LEFT” button, and the battery status will be displayed.

It is not necessary to use the device connected to the electrical current. In fact, doing so could be harmful and shorten battery life.

However, in the event that it is necessary to complete a program in progress and the battery is about to run out, the device can be connected to the electrical current. At the end of the program, it is important to ensure that you carry out a full charge of 8 to 9 hours.

When the battery begins to fail, you can choose to use the device connected to the electrical current or replace the battery with a new one.

It is possible to interrupt a program in progress, although it is not recommended, as it is important to complete the programs in their entirety. This is because these are not fixed frequencies, but each program contains hundreds of different frequencies.

If it is still necessary to interrupt the program, the UP, DOWN and ENTER buttons must be pressed simultaneously.

It should be noted that when you restart the device, it will not resume exactly at the point where it was interrupted. Each program has what are called subroutines. When turned on again, the program will resume at the beginning of the subroutine it was in, thus avoiding having to start the program from the beginning.

It is common for this situation to occur when the device is used with wet gauze pads or when wetting the electrodes. The presence of rust residue on the wipes or on your hands indicates that the electrolysis is taking place correctly, which is a positive rather than a negative. At the other electrode, this generally does not happen because one generates H+ ions and the other OH-, causing one to oxidize and the other to reduce.

Higher intensity does not necessarily imply better results. The power of the device is designed primarily to improve conductivity. It is recommended to use it in a range of 30 to 60% of its capacity to avoid burns.

In certain situations, a "tingling" sensation may be experienced when resonance occurs with the pathogen being treated. However, it is important to remember that this sensation should always be pleasant and not cause discomfort or burns.

That's right, every time the applet is changed, the device returns to the default 30-40% power if that applet has not been used previously. Changes are stored in frequency memory for the next time that program is used.

The proper power percentage varies by user. There are people with greater sensitivity to electricity who need to adjust it to a minimum, while others may need maximum power to perceive any sensation. In fact, some programs use frequencies so low that they can go unnoticed.

The possibility of increasing the intensity is designed to improve conductivity, as some people may experience constant beeping if the equipment does not detect a proper connection, which would require increasing the intensity. The ideal experience is when a soft tickle is perceived. However, in certain programs, you may not notice any sensation, since the Biotrohn device works with microfrequencies.

When Biotrohn devices arrive at our offices, the manufacturer sends them with an empty memory. The USB is used to program them, and this process is only done once. Thus, the Biotrohn's memory is filled with 135 programs. This sets it apart from other similar devices on the market that include only a few programs and require the purchase of additional programs separately.

USB can also be useful in case the device crashes due to power fluctuations. In such situations, you can contact our team, and we will provide you with information on the next steps.

The "Universal Frequency" program is a general program that is used when you do not seek to treat any specific pathology and simply want to harmonize the cells of the body. This program uses frequencies that induce cellular coherence at a global level, harmonizing the organism from the DNA.

The term "Aluka" comes from "Andreas LUdwig KAlcker" in honor of its creator. The Aluka sequences are the foundation from which all other programs have been developed. This can be considered to be the initial sweep program used to program the rest. The main difference between Aluka and Universal Frequency is that the first performs a superficial restoration through systems, tissues and organs, while the second focuses more on the cellular vibratory level, being more "micro" than "macro".

No, the Detox program is designed to help purify the body of toxins, especially those related to the waste products generated by bacteria and parasites. This program aims to promote the elimination of these harmful substances to improve the general health and well-being of the user.

It is not necessary to have previous knowledge in medicine or electricity to use the Biotrohn. However, it is essential to carefully read the instructions for use and adhere to all safety precautions.

Biotrohn devices are designed in a simple way so that doctors, therapists or people in their homes can easily use them. To use, simply select the desired program, hold the electrodes or apply the adhesive pads to the corresponding area, and remain seated or lying down for as long as indicated on the screen.

Yes, the Biotrohn includes a 2-year warranty for the device and 6 months for consumables (battery, cables, case) from the date of purchase. During this period, any manufacturing defect will be repaired or replaced at no additional cost to the customer.

Periodic maintenance is not required for the Biotrohn. However, it is recommended to clean it regularly with a soft, damp cloth to keep it in good condition.

You have a user manual where we explain step by step everything you need to know to start using the Biotrohn. In this manual we expand the information that you will find on our website as well as the steps to follow so that you can start using the equipment as soon as possible. It is available in multiple languages.

Currently, the Biotrohn is only available for purchase in our online store.

Our prices are in Euros, so if you want to know the price of the equipment in your local currency, we recommend that you visit this online currency converter to make the conversion with the exchange rate in real time.  

To find out the price of the shipping costs, you can add the equipment to the shopping cart, once in the cart, you only have to enter your address for the calculation to be made. To know the shipping costs it is not necessary to register, but you must do so to make the purchase. 

In the box

Biotrohn® The best zapper on the market

Battery charger (European plug) x1

Biotrohn cables and electrodes

Battery charger (European plug) x1

Biotrohn® The best zapper on the market

usb-cable x 1

CLO2 generator connector cable

usb-cable x 1

Biotrohn® The best zapper on the market

briefcase x1

User manual.

List of programs

Biotrohn® The best zapper on the market

Technical aspects

The Biotrohn frequency generator complies with CE regulations.
EN 61326-1ed 2:2013
Test report: 602045-01/1 of: 18.05.2016
CSN EN 61326-1ed 2:2013
Meets all conditions for battery-powered electrical equipment; tested by the Prague Electrotechnical Testing Institute.

Frequencies programmed by Dr. hc Andreas Ludwig Kalcker 


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From July 1, 2021, taxes for community countries are calculated based on the rates of each state. For this reason, prices may vary depending on the tax rate of each member country. 

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