Small Canadian Business
Independent, Canadian, Locally Owned Business
Easy Returns & Exchanges
Check our Return and Exchange Policy
Professional Advice Included
Talk With Our Clinical Experts
Free Shipping
In Canada on orders over $120*
Primera TENS / NMES Unit with HAN Waveform
$190.00
The Chattanooga Primera® TENS / NMES Unit combines 8 TENS programs and 6 NMES muscle stimulation programs in one portable, durable device for clinical or home therapy use. Featuring the unique HAN waveform, Primera delivers advanced pain relief and muscle rehabilitation in a compact design.
This device provides temporary pain relief through TENS therapy and supports muscle re-education and strengthening through NMES. Includes lead wires, electrodes, positioning belt, battery, and carrying case.
In stock
Clinical Pricing Available!
The Physio Store is offering clinical pricing for all businesses / institutions in healthcare, healthcare professionals/students and fitness industry professionals.
We highly recommend you to sign up for our clinical pricing program, which will provide you with discounts on most of our products. We will also send out exclusive monthly specials, new ideas and new products on the market. Our company values the hard work and dedication of healthcare professionals and express gratitude by offering you special pricing and monthly deals.
Close
Special Handling Shipping
For complete details, please review our Shipping Policy .
Manufacturer Warranty
Chattanooga’s Warranty Guarantees the Primera TENS For 2 Years.
The Primera Tens is fully guaranteed against defects for 2 Years from the date of arrival. Please check your package immediately to be sure your order is correct and items were not damaged. If you receive a defective product or an incomplete order, CONTACT US IMMEDIATELY prompt action. Damaged or short shipments should be reported within 5 days of receipt. Please keep the box if you are contacting us about a damaged item.
Please register your device at Chattanooga for your warranty. click this link – Chattanooga Warranty Registration to register your device.
Please send photos of the defect as well as serial numbers (SN) on the product label to customerservice@physiostore.ca. We will communicate with you if the item(s) is/are eligible for replacement. If approved, we will provide you with a return shipping to send back the defective product, you will receive a replacement after the defective product is received.
CloseReturn Policy
Final Sale Item. This product is not eligible for return, refund, or exchange once purchased.
High-Risk Medical Devices & Hygienic Products
Certain items are designated as Final Sale due to their medical, personal-use, hygienic, or electrical nature. These products cannot be restocked or resold once opened or shipped.
This includes (but is not limited to):
- Electrotherapy devices (TENS, EMS, IFC units)
- Items that come into contact with skin or bodily areas
- Personal-use rehabilitation and pain management devices
- Electrical medical equipment
For health, safety, and product integrity reasons, these items are non-returnable regardless of usage.
Clearance & Special Order Items
Products marked as Clearance, Special Order, or End-of-Line are also Final Sale and not eligible for return due to limited inventory availability.
Exceptions apply only for defective, damaged, or incorrectly shipped items reported within 5 days of delivery.
By completing your purchase, you acknowledge and agree to these Final Sale terms prior to checkout.
For full details, please review our Return & Exchange Policy.
Chattanooga Primera® TENS / NMES Unit with HAN Waveform
The Chattanooga Primera® is a portable electrotherapy system combining advanced TENS pain relief and NMES muscle stimulation in one easy-to-use device. Designed for both clinical environments and supervised home programs, Primera offers a comprehensive range of programs to support pain management and muscle rehabilitation.
Advanced Pain Relief with TENS
Primera includes 8 TENS programs designed to provide temporary relief of pain through two primary mechanisms: the gate control theory and endorphin release.
TENS therapy works by sending small electrical pulses through the skin to stimulate sensory nerves. These pulses can help block pain signals from reaching the brain (gate control mechanism) and stimulate the release of endorphins, the body’s natural pain-relieving chemicals.
The HAN Waveform Explained
The HAN waveform (Han Acupuncture-like Nerve stimulation) alternates between low frequency (approximately 2 Hz) and high frequency (approximately 70 Hz) stimulation. This frequency modulation is designed to stimulate different opioid receptors in the body, potentially enhancing endorphin release compared to single-frequency stimulation.
Neuromuscular Electrical Stimulation (NMES)
Primera also includes 6 NMES programs to support muscle rehabilitation. NMES delivers electrical impulses that cause muscle contraction, helping to re-educate muscles, reduce disuse atrophy, and improve functional recovery after injury or surgery.
- Muscle re-education
- Prevention of disuse atrophy
- Maintaining or increasing range of motion
- Increasing local circulation
How Primera Differs from Basic TENS Units
Unlike entry-level TENS-only devices, the Primera combines both TENS and NMES in one unit. It includes multiple preset programs and the unique HAN waveform, offering greater versatility for pain relief and muscle rehabilitation compared to single-mode consumer devices.
Compared to simpler TENS units, Primera provides:
- Both TENS and NMES capability
- 8 TENS and 6 NMES preset programs
- HAN frequency modulation waveform
- Clinical-grade durability
Features
- 8 TENS programs for temporary pain relief
- 6 NMES programs for muscle stimulation
- HAN waveform frequency modulation
- Portable and lightweight design
- Battery operated (9V)
- Clear digital display
- Two-year manufacturer warranty
What’s Included
- Primera TENS / NMES Unit (Model 77621)
- Lead wire set (77619)
- 9-volt battery
- Electrode positioning back belt
- Two 4-packs of 2″ round DURA-STICK® Plus electrodes
- Instruction booklet
- Carrying case
Indications
TENS:
- Temporary relief of chronic pain
- Adjunctive treatment for post-surgical or post-trauma pain
- Temporary relief of arthritis-related pain
NMES:
- Preventing disuse atrophy
- Muscle re-education
- Maintaining or increasing range of motion
- Improving local circulation
Proudly Canadian
The Physio Store supplies authentic Chattanooga electrotherapy devices across Canada, backed by professional support and manufacturer warranty coverage.
Frequently Asked Questions
What is the HAN waveform on the Primera TENS unit?
The HAN waveform alternates between low frequency (around 2 Hz) and high frequency (around 70 Hz) stimulation. This modulation is designed to stimulate different opioid receptors and may enhance natural endorphin release compared to fixed-frequency TENS.
How is the Primera different from a basic TENS unit?
Primera combines both TENS and NMES in one device and includes preset clinical programs and the HAN waveform, making it more versatile than basic consumer TENS-only units.
Can the Primera be used at home?
Yes. It is suitable for supervised home therapy as well as clinical use.
Does this device strengthen muscles?
Through NMES programs, the device stimulates muscle contraction to support muscle re-education and help prevent disuse atrophy.
How many programs does the Primera include?
It includes 8 TENS programs and 6 NMES programs.
Is this unit battery operated?
Yes. The Primera operates on a 9-volt battery.
Is the pain relief permanent?
No. TENS provides temporary relief of pain.
Can this help after surgery?
TENS may be used as an adjunct for post-surgical pain management when appropriate and recommended by a healthcare provider.
What electrodes are included?
Two 4-packs of 2" round DURA-STICK® Plus self-adhesive electrodes are included.
Is this covered by insurance?
Coverage depends on your provider and prescription requirements. Many plans cover TENS devices when medically prescribed.
| Weight | 510.00000000 g |
|---|---|
| Dimensions | 28.0 × 6.0 × 17.0 cm |
| Availability |
Now available in-store at 22635 Komoka Road Komoka N0L1R0 Powered With Oliver Pos |
|---|
3 reviews for Primera TENS / NMES Unit with HAN Waveform
| 5 star | 100% | |
| 4 star | 0% | |
| 3 star | 0% | |
| 2 star | 0% | |
| 1 star | 0% |
What is the HAN waveform on the Primera TENS unit?
The HAN waveform alternates between low frequency (around 2 Hz) and high frequency (around 70 Hz) stimulation. This modulation is designed to stimulate different opioid receptors and may enhance natural endorphin release compared to fixed-frequency TENS.
How is the Primera different from a basic TENS unit?
Primera combines both TENS and NMES in one device and includes preset clinical programs and the HAN waveform, making it more versatile than basic consumer TENS-only units.
Can the Primera be used at home?
Yes. It is suitable for supervised home therapy as well as clinical use.
Does this device strengthen muscles?
Through NMES programs, the device stimulates muscle contraction to support muscle re-education and help prevent disuse atrophy.
How many programs does the Primera include?
It includes 8 TENS programs and 6 NMES programs.
Is this unit battery operated?
Yes. The Primera operates on a 9-volt battery.
Is the pain relief permanent?
No. TENS provides temporary relief of pain.
Can this help after surgery?
TENS may be used as an adjunct for post-surgical pain management when appropriate and recommended by a healthcare provider.
What electrodes are included?
Two 4-packs of 2" round DURA-STICK® Plus self-adhesive electrodes are included.
Is this covered by insurance?
Coverage depends on your provider and prescription requirements. Many plans cover TENS devices when medically prescribed.
You may also like…
Related products
Treat Your Own Back – 9th Edition (McKenzie Method Book)
In Stock(50 Units)
Original price was: $18.95.$11.95Current price is: $11.95.
Bauerfeind EpiPoint Elbow Brace
In Stock
$125.00
Donjoy Actistrap Back Support
In Stock
$119.95
DonJoy Lateral J Patella Knee Brace
In Stock
$134.95
DonJoy Spider Elbow Pad
In Stock
$66.95
Serola Sacroiliac Belt – version 2
In Stock
$79.95
SUPPORT SMALL CANADIAN BUSINESS
The people at the Physio Store were very helpful and my TENS machine arrived promptly. The machine is easy to use and works well.
Great machine. Best customer service.!
bought this product a while back and needed a new one and I absolutely love this. it help a lot with my neuropathic pain caused by neurofibromatosis.