The Chattanooga Primera TENS/NMES Unit with HAN Waveform is an advanced therapeutic device designed for pain relief and muscle recovery. It combines Transcutaneous Electrical Nerve Stimulation (TENS) and Neuromuscular Electrical Stimulation (NMES) technologies, along with the unique HAN Waveform. This review explores its features, performance and overall utility.

Chattanooga Primera TENS/NMES Unit with HAN Waveform

1. Product Overview

Advanced Dual Therapy

  1. TENS Technology: Utilizes small electrical currents for pain management.
  2. NMES System: Stimulates muscle contraction for recovery and strengthening.
  3. Unique HAN TENS Waveform
  4. Utilizes Dense-and-Disperse modes, alternating between 2 Hz and higher frequencies (15 or 70 Hz) for enhanced opioid peptide dispersion.

Extensive Programming

Offers 8 TENS and 6 NMES programs, with an amplitude range of 0-80 mA.

Design and Display

  1. Features a dual channel with individually isolated circuits.
  2. The LCD display provides clear feedback on settings and battery status.

2. Pros and Cons


  • Versatile Therapy Options: Wide range of TENS and NMES programs for personalized treatment.
  • Innovative HAN Waveform: Enhances pain relief efficiency.
  • Reliable Performance: Proven circuit with over a decade of reliability.
  • User-Friendly Interface: Easy to navigate programs and settings.
  • Portable and Durable: Compact design with a sturdy carrying case.


  • Complex for Beginners: May require a learning curve for new users.
  • Battery-Dependent: Frequent charging or battery replacements might be needed.
  • Cost: May be higher-priced compared to basic models.

3. User Experience


  1. Users often report significant pain relief and improved muscle function.
  2. The HAN Waveform is particularly praised for its effectiveness in pain management.


  1. The interface, while feature-rich, is intuitive after initial familiarization.
  2. Portable design makes it convenient for both home and travel use.

Durability and Reliability

The device’s robust build and reliable circuitry ensure long-term usage.



To conclude, the Chattanooga Primera TENS/NMES Unit with HAN Waveform is a sophisticated device that brings clinical-grade therapy into the comfort of your home. In fact, its combination of TENS and NMES therapies, supplemented by the unique HAN Waveform, makes it a powerful tool for managing a wide array of pain and muscle-related issues. While it may present a steeper learning curve and a higher price tag, its versatility, effectiveness and proven track record of reliability make it a valuable investment for those seeking comprehensive pain management and muscle recovery solutions. Whether for chronic pain, post-surgery recovery, or muscle strengthening, the Chattanooga Primera offers a well-rounded approach to physical therapy!