Chat with us, powered by LiveChat

Welcome to Dr. Tennant's Revolutionary Health Device: The Tennant BioModulator®

These safe, battery-powered devices are easy to use and highly effective. They can be used again and again for years to come, so you’ll always be able to give your body the tools it needs to get well and stay well.

Learn more about Dr. Tennant’s recommended packages by making an appointment with a Senergy Advisor.

What is the Tennant BioModulator®?

It is a battery-powered, easy to use, hand-held medical device for PAIN RELIEF that uses microcurrent technology to engage the body’s natural resources and assist in the process of pain management & rehabilitation.
Additionally, the Tennant BioModulator® stimulates the body at the cellular level through electrical impulses transmitted by electrodes in the device, restoring cellular metabolic activity in the area of treatment. This creates a reduction of pain and inflammation, because of the increased transport of nutrients into the cells and waste out of the cells.
The Tennant BioModulator® PLUS and PRO are designed for deep stimulation for effective, long-lasting pain relief to help patients from all walks of life suffering from all types of conditions. FDA-accepted, these devices have been proven to alleviate muscle, tendon, and ligament pain due to injury, arthritis, fibromyalgia, diabetic neuropathy, carpal tunnel, sports injuries, phantom limb pain and Parkinson’s disease, just to name a few. 
Patients who consistently use a BioModulator® device in their treatment plan improve their range of motion, have faster healing times, and dramatically reduce their dependency on drugs.

Want to learn more about the practical uses of the Tennant Health System? Subscribe to our YouTube channel for information on how to use the Tennant BioModulator®, clean water, electron donors & stealers, healthy lifestyle tips, and much more.

Tennant BioModulator® PRO vs PLUS

Tennant BioModulator® PRO 2.1

  • Dr. Tennant’s newest device designed for personal and professional use
  • Illuminated digital readout for more Precise Assessments
  • Dr. Tennant’s proprietary frequency modes for therapy
  • Reflects changes during therapy
  • More than 50 mode choices
  • Brain Wave Frequencies
  • Four programmable modes allow individuals and Practitioners to set their own modes
  • QuickStart Guide & Health Conference included

Tennant BioModulator® PLUS

  • Easy to Use
  • Mode for Assessments
  • Dr. Tennant’s proprietary frequency modes for therapy
  • QuickStart Guide & Integrative Health Conference included


  • Non-invasive gentle sub-sensory stimulation
  • Non-invasive management of chronic, intractable pain
  • Drug-free alternative therapy for adults and children – Non-pharmaceutical pain relief
  • Leaves patient feeling alert
  • Non-habit forming modality for treating pain
  • Individual device available for long term pain management relief
  • Pre-surgical applications – use 2x per day for 20 minutes for 3 days before surgery
  • Post-surgical and long-term pain management including scar tissue
  • Easy-to-use; portable, lightweight, ergonomic design
  • Cost-effective treatment
  • Selection of modes to suit individual therapy needs
  • Repair service, toll-free technical support, and optional accessories available
  • Uses two AA batteries for greater mobility
  • Includes a one-year manufacturer’s limited warranty
  • 30-day money-back guarantee (less 15% restocking fee)
  • Covered by some health insurance plans and worker’s compensatio

BioModulator® Technology: Explained

How does it work?

Tennant BioModulator® devices contain unique frequency sets created by Dr. Jerry Tennant to produce microcurrent electrical impulses, which are transmitted by electrodes in the device through the skin to interface with the body’s internal peripheral nervous system for the purpose of therapeutic intervention.

System feedback is the body’s response to the stimulus, and the technology’s ability to detect, measure, analyze, and respond to the body. With each response, the electrical properties of the tissue change. The device detects the change and responds, resulting in the very next signal being modified. This is possible because of the development of modern high-speed microprocessors, which are able to establish a “cybernetic loop” between the electronic instrument and living body.

The body’s response can be measured with respect to a signal sent out from the instrument to initiate the loop. When a signal is emitted and penetrates deep into the tissue, the impedance of the tissue modulates the next waveform. The degree of modulation is based upon the changes of impedance of skin as signals are applied. This sets up a constantly changing interactive bio-loop possessing non-repeating signals. Eventually, the change in impedance diminishes in significance until a plateau occurs.

Why does it work?

The body is continually influenced by external stimuli, which it reacts to in a way that maintains internal balance, or homeostasis. Because these stimuli are infinitely variable, no two stimuli are experienced in the same way.

However, if pathological signals are experienced as repetitive, the body adapts to them and fails to recognize it has a problem. Blocking the brain’s ability to know that tissue is degenerating and painful is the normal mechanism-of-action of pain medications, TENS devices, implanted pain blockers and other commonly used pain therapies.

The Tennant BioModulator® modifies the pathological signal so the brain becomes aware of it, inputting electrical impulses, to increase voltage, that are never the same and cannot be adapted to, forcing the body to respond by making new cells. 

Central nervous system involvement is reintroduced by neuropeptides that alter the regulatory pathway, breaking the repetitive pathological cycle and allowing cellular and organ recovery. The result is pain disappears because of healing, not because the brain doesn’t know the area no longer hurts.

Read on below to learn more.

Tennant BioModulator® Treatment Shown Through Waveforms in Body Tissue


In air, there is no conductivity between the electrodes. The output signal waveform appears as shown.


The device immediately detects when the electrodes are placed on reactive tissue as shown.

The passing of the pulsed sinusoidal waveforms causes the electrical properties of the tissue to change resulting in changes in the next applied signal.


In Assess mode, the device will ‘Ring’ when it detects the optimum characteristics.

Tennant BioModulator® technology measures this signal 24 million times per second to recognize this condition.

Frequently Asked Questions

The Transcutaneous Electrical Nerve Stimulator, more commonly referred to as a TENS unit is an electronic medical device that produces electrical signals used to stimulate nerves through unbroken skin. The TENS units are bombardment devices; meaning they bombard your body with electrical currents without any true focus to the energy.

Additionally, TENS units emit square waves while our BioModulator emits curved waves. By design, our bodies have curved waves which means that the square waves don’t work as well (think round peg in a square hole). With the proprietary frequency developed by Dr. Tennant is emitted through the BioModulator®, our body actually selects them and takes frequency to the areas of deficiency. With square waves the frequencies are not as helpful with healing and often times take longer with getting results.

The BioModulator® has the capability of delivering these curved frequencies to the cells by first measuring the tissue through reaction and figuring out exactly what it needs. That way when the proprietary frequency developed by Dr. Tennant is introduced to a cell, it is measured perfectly for efficient healing, If the current was off by even a millionth of an amp, it can be the difference between the cells utilizing it or not.

*Benefits include:

  • Gentle
  • Easy to use
  • Drug-free and non-invasive therapy
  • Positive effects may appear after the first session
  • May be used together with a standard drug or surgical treatment (adjunctive therapy)
  • Helps decrease use of large doses of drugs
  • Can help several conditions at the same time

The Tennant BioModulator® PLUS offers a non-invasive, drug-free alternative, integrative or adjunctive medical treatment. It is painless. Treatment is conducted by placing the device directly on the skin or by using accessory electrodes that are available for purchase.®

* The statements above have not been evaluated by the FDA.

We have many different packages and options for our customers. We strongly encourage you make an appointment with one of our Senergy staff to discuss your options. We also offer financing options for the Tennant BioModulator®. You can book an appointment at this link.

We strongly recommend that you make an appointment with Dr. Tennant at The Tennant Institute to be sure you address the 5 factors in your body that could be causing low voltage. Please make an appointment by going to their website. CLICK HERE. 

The Tennant BioModulator® PLUS is Dr. Tennant’s original unit with 4 modes and is very user-friendly. The Tennant BioModulator® PRO is Dr. Tennant’s newest unit, it has additional advanced modes and a digital display that shows reaction information. Both devices can be used for Professional or Home Use with a prescription.

Shopping Cart