Cefar® TENS and Acupuncture Mode by Chattanooga Canada (Replaced Cefar Primo Pro TENS)


Chattanooga’s Cefar® TENS is our next generation of handheld TENS device, building on the established technology of the Primo Pro with added features to combine TENS and NMES treatments in one portable unit.

Intended for use by both healthcare professionals and patients, the Cefar® TENS combines TENS with NMES to bring pain relief and muscle rehabilitation from the clinic to the home. Patients can begin treatment with the device in a clinical environment under the supervision of a healthcare professional, before continuing their rehabilitation in the comfort of their own home. Simple and easy to use, with a range of compliance features, patients can be confident about taking their treatment into their own hands while their clinician can easily set parameters and monitor their progress.

For healthcare professionals this equals faster recovery times and shorter stays for patients, less pressure on resources, and less use of analgesics, therefore patients can benefit from reduced pain, increased mobility, and greater independence.

Altogether, Cefar® TENS is more than just a pain machine.



  • Symptomatic relief and management of chronic, intractable pain
  • Adjunctive treatment for post-surgical and post-trauma acute pain
  • Relief of pain associated with arthritis



  • Retarding or preventing disuse atrophy
  • Maintaining or increasing range of motion
  • Re-educating muscles
  • Increasing local blood circulation


Product Features:

1+1 Function

The Cefar® TENS stimulator features 2 independent channels that can be managed separately. Users can select either the same program on both channels, or 2 different programs to be used simultaneously, allowing a combination of NMES and TENS in one treatment. This means patients can rehabilitate the affected area while reducing the associated pain, resulting in a more comfortable and effective treatment.

Mains rechargeable Lithium Polymer battery

Plug your device directly to the mains plug to charge the battery. Fast and complete charge in less than 90 minutes with a battery life of 6 to 10 hours treatment depending on parameters used.

Program mode

The device allows users to create up to 5 custom programs and to select specific parameters. This gives clinicians the ability to prescribe an initial treatment regime that patients can be confident in using, while still allowing room for future modification.


Record patients’ pain score in the stimulator before and after treatment, with a numeric scale (1-10)

Locking function

Lock the program to be sure your patient will only use the appropriate program.


For best results when using the Cefar® TENS, we recommend the use of Chattanooga electrodes. Available in 2 different sizes, our electrodes provide excellent conductivity and ensure comfortable and effective treatment.


Clinicians can easily keep track of patients’ home treatments by monitoring how many hours of usage since the device was reset, along with total device usage.

The device also features a locking function to ensure the patient will only use the appropriate program.

Program mode

Create up to 5 custom programs and select your own parameters.

Rotatable belt clip

When connected to the belt clip, the device can be rotated to allow convenient access to the cable outputs.

3 years warranty

Acupuncture mode*

When connected to acupuncture needles, Cefar® TENS can be used to deliver electroacupuncture (EA) treatment. As EA has been shown to be particularly effective in the reduction of pain, this provides a further, more beneficial option for patients to reduce their discomfort.

*Clinician use only. Acupuncture needles not supplied.

Preset Programs:

P1 Gate Control HF 80Hz
P2 Burst LF 2 Hz
P3 Gate Control HF 80Hz Mod
P4 Gate Control HF 80Hz Sens
P5 Mix 80Hz/2Hz Han
P6 Neuromodulation LF 10Hz
P7 HF Flow Tens
P8 Endorphinic LF 5Hz
P9 Gate Control HF 100Hz
P10 NMES Muscle Stim 50Hz
P11-P15 Custom programs


Dimensions: 132 x 60 x 24 mm
Weight: 156g
Electrical Safety Class: Class IIa
Channels: Two independent and individually adjustable channels that are electrically isolated from each other.Maximum electrical charge per pulse: 80 micro coulombs (2 × 40 μC, compensated)
Constant current: 0 to 99 V in 1 V increments for Constant Voltage mode for electrostimualtion (5V for first setp). 0,1 mA – 30mA steps 0,1 mA for electroacupuncture.
Maximum pulse intensity: 99.5 mA in Constant Current mode or 99 V in Constant Voltage mode for neurostimulation. 30 mA
Pulse width: 60 to 400 μs.
Pulse frequency: 1-120 Hz
Applied part: Type BF
Battery: Lithium Polymer (Li-Po) rechargeable battery
Additional Specs: Maximum electrical charge per pulse: 80 micro coulombs (2 × 40 μC, compensated)
Applied part: Type BF
Maximum amplitude: Maximum electrical charge per pulse: 80 micro coulombs (2 × 40 μC, compensated)
Pulse intensity increments: Manual adjustment of stimulation intensity from 0 to 99 mA in minimum increments of 0.5 mA for
Pulse width: 60 to 400 μs.





Clinical References:

1. Gatewood CT, et al., The efficacy of post-operative devices following knee arthroscopic surgery: a systematic review. Knee Surg Sports Traumatol Arthrosc. 2017 Feb;25(2):501-516.
2. Rakel B, Frantz R, Effectiveness of transcutaneous electrical nerve stimulation on postoperative pain with movement. The Journal of Pain, Vol 4, No 8 (October), 2003: pp 455-464
3. Johnson MI, Jones G, Transcutaneous electrical nerve stimulation: current status of evidence. Painmanag (2017)7(1) 4. Johnson MI, et al., Transcutaneous electrical nerve stimulation for acute pain. Cochrane database of systematic reviews 2015 issue 6
5. Sbruzzi G, et al., Transcutaneous electrical nerve stimulation after thoracic surgery: systematic review and meta-analysis of 11 randomized trials. Rev Bras Cir Cardiovasc. 2012 Jan-Mar;27(1):75-87.
6. Osiri M, et al., Transcutaneous electrical nerve stimulation for knee osteoarthritis. The Cochrane Library 2008, Issue 2
7. Bjordal JM, et al., Short-term efficacy of physical interventions in osteoarthritic knee pain. A systematic review and meta-analysis of randomised placebo-controlled trials. BMC Musculoskeletal Disorders 2007, 8:51
8. Gould N, Donnermeyer D et .al., Transcutaneous Muscle Stimulation as a Method to Retard Disuse. Clin Orthop Rel Res, 178:190–197, 1983
9. Labanca L, et al., Neuromuscular Electrical Stimulation Superimposed on Movement Early after ACL Surgery.Med Sci Sports Exerc. 2018 Mar;50(3):407-416.
10. Topp R, et al., The Effect of Prehabilitation Exercise on Strength and Functioning After Total Knee Arthroplasty. Physical Medicine & Rehabilitation, Volume 1, pp. 729-735
11. Broderick BJ, et al., Haemodynamic performance of neuromuscular electrical stimulation (NMES) during recovery from total hip arthroplasty. J Orthop Surg Res. 2013 Mar 5;8(1):3.
12. Sangdee C, et al., Electroacupuncture versus Diclofenac in symptomatic treatment of Osteoarthritis of the knee: a randomized controlled trial. BMC Complementary and Alternative Medicine 2002, 2:3

Additional information

Weight 5 lbs
Dimensions 13 × 10 × 4 in


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