Nu-Tek Maxi Plus2

Nu-Tek Maxi P​​lus2 Dual Cha​nnel EMG ETS STIM

Nu-Tek Maxi Plus2 Advance EMG and STIM Device for Muscle Rehabilitation, Pain Relief, Sports, Fitness and Continence  

Nu-Tek Maxi Plus2 is a technologically advanced dual channel EMG Biofeedback with Stimulation and ETS.  It can be configured to function as a dual or single channel EMG, ETS with 2 EMG and 2 stimulation channels or purely as a dual channel stimulator. Nu-Tek Maxi Plus2 aids the efforts of professionals in a wide variety of clinical muscle rehabilitation applications, including continence therapy, sports rehabilitation, sports training enhancement, fitness, pain relief, neurological rehabilitation and general rehabilitation physiotherapy.

Nu-Tek Maxi Plus2 is a complete muscle rehabilitation solution for everyone seeking a comprehensive portable EMG ETS STIM device with an array of different applications in general physiotherapy, continence therapy, pain relief, sports and fitness. Nu-Tek Maxi Plus2 is portable, comprehensive, user friendly and PC compatible via updatable software (optional) for Unlimited Patient Database storage and data analysis - a perfect muscle rehabilitation solution for clinics and hospitals and for home use! 

*Nu-Tek Maxi Plus2 can be purchased VAT Free for personal use by people with relevant chronic conditions.

Nu-Tek Maxi Plus2 EMG ETS STIM Device introduction

Nu-Tek Maxi Plus2 Dual Channel EMG with ETS and STIMULATION Device is an advanced portable muscle assessment and muscle rehabilitation unit suitable for clinical applications and for home use. Connectible to a PC via the Nu-Tek System Software (optional), unlimited patient data can be stored and analysed in details. Clinical Reports can be printed or e-mailed, if required.     

  • Electromyography (EMG) measures muscle activity and provides biofeedback on the actual status of the muscle strength.
  • Stimulation (STIM) improves blood flow and capillary bed density and strengthens muscles. 
  • EMG Triggered Stimulation (ETS) is a combination of EMG and Stimulation during which EMG serves as a triggering threshold to commence stimulation. ETS facilitates rehabilitation of flaccid muscles, enhances muscle function and reduces problems and conditions arising from muscle weakness, such as neuromuscular problems caused by stroke and conditions related to weak pelvic floor, such as incontinence or prolapse.

Nu-Tek Maxi Plus2 can be configured for use as a dual or single channel EMG and ETS with 2 EMG and 2 Stimulation channels or used purely as a dual channel neuromuscular stimulator.

Nu-Tek Maxi Plus2 Dual Channel EMG Biofeedback with ETS & STIM features 5 pre-set clinical modes for the following medical and sports applications:

  1. Continence
  2. Rehabilitation
  3. Pain Relief
  4. Sports
  5. Fitness

Each of the clinical modes has a number of pre-set STIM programs with up to 5 program phases. The pre-set programs for different clinical modes are as follows:

  1. Continence: 20 pre-set STIM programs: Urge incontinence (female), Stress incontinence (female),Frequency, Mixed incontinence (Stress, Urge, Frequency), Pelvic floor exercise workout, Rectal stimulation (male / female via anal probe), Pain relief, Neuro degeneration of sensory nerves (female lack of sensitivity), Sensory nerve test, Prolapse (Cystocele), Maximum Pelvic Floor Exercise Shoot Bursts, Pelvic Floor Endurance, Weekly Pelvic Floor Maintenance, New Mums, Hysterectomy, Sexual improvement, Overactive bladder stimulation via external skin electrodes (skin electrodes placed on lower legs above the ankle - Tibial Nerve Stimulation), Stress incontinence stimulation via external skin electrodes (skin electrodes placed on lower back in spinal S1 – S2 area), Stress incontinence stimulation via skin electrodes (skin electrodes placed on the buttocks).
  2. Rehabilitation: 7 pre-set programs: Stroke; Chronic Facial Paralysis; Acute Facial Paralysis; Multiple Sclerosis; Arthritis; Knee Pain, Muscle Wasting & Oedema; Disuse Atrophy.
  3. Pain Relief: 10 pre-set stimulation programs: Pain Blocking (2 programs); Acupuncture (2 programs); Analgesic (2 programs); To minimise accommodation – Prevention of Tolerance Development (3 programs); Professor Hans Mode.
  4. Sports: 14 pre-set STIM programs: Warm Up; Active Recovery; Muscle Toning; Anaerobic Activity; Aerobic Activity; Sports Endurance; Sports Resistance ( 2 programs); Sports Strength (2 programs); Sports Explosive Strength; Sports Maximum Contraction; Sports Muscle Relaxation; Sports Resume Training.
  5. Fitness: 8 pre-set programs: Warm Up; Muscle Toning; Aerobic; Anaerobic; Massage; Endurance; Muscle relaxation; Tired Legs.

Nu-Tek Maxi Plus2 also features custom STIM programs for Continence and Sports. The Nu-Tek Maxi Plus2 uses a diverse range of parameters enabling users to meet any stimulation requirements and patient needs.

Nu-Tek Maxi Plus2 Dual Channel EMG ETS STIM is simple to use with easy to understand EMG Biofeedback Bar Graph display of muscle strength based on the Nu-Tek Muscle Strength Grading Scale for Pelvic Floor Muscles of 1 – 6. The device also displays EMG Biofeedback measurements in a waveform format (Line Graph), which enables clinicians to perform accurate clinical muscle assessments, embark on appropriate ‘patient needs based’ therapy and analyse the progress made in the patients’ conditions.

When linked to a PC using the optional Nu-Tek System Software, unlimited patient data can be recorded, stored and analysed and clinical reports printed or e-mailed. Nu-Tek System Software (optional purchase) comes with license for 5 activations (i.e. on 5 PCs).

Periodically, using the Nu-Tek System Software (optional purchase), you can update your Nu-Tek Maxi Plus2 with newly developed programs based on latest clinical studies, enabling you to enhance clinical treatments and therapeutic applications of EMG, ETS and STIM. These newly developed programs will be downloadable to the PC for subsequent transfer to the device via USB cable.

Nu-Tek Maxi Plus2 EMG

The EMG function operates on 2 custom programs, which can be set with 1 EMG phase furnished with required parameters.

EMG Parameters

  • Program duration: 99 minutes maximum
  • Threshold: 0.6 – 2000 µV; During Work period the user/patient is prompted to contract above threshold. In the Rest period the user / patient is prompted to relax the muscles.
  • Filter: Wide / Narrow
  • Biofeedback: Above / Below / Continue / OFF; Above the threshold; Below the threshold; Continue-sound; OFF – no bar graph sound.
  • Work / Rest time: 2 – 99 seconds
  • Threshold setting: Auto / Manual
  • Trial: Number of Work / Rest repetitions, 2 – 99

EMG and ETS Threshold  

Threshold is an EMG value measured in microvolts (µV). Stronger muscles which perform strong contractions have a higher threshold than weak or flaccid muscles. In ETS mode (EMG Triggered Stimulation), the user / patient needs to exceed to contract the muscles above the target threshold to trigger stimulation.

Nu-Tek Maxi Plus2 enables you to select from an Automatic Threshold or Manual Threshold. Automatic Threshold is pre-set at 80% of the actual (previous) Work Average, whilst the Manual Threshold is manually adjustable by the therapist or the user.

Conditions known to respond well to EMG

  1. Incontinence
  2. Pelvic Floor Pain
  3. Pain in the Limbs
  4. Pain in Lower Back
  5. Neck and Shoulder Pain
  6. Spinal Conditions
  7. Repetitive Strain Injury
  8. Stroke
  9. Weak Pelvic Floor
  10. Muscle Activation Retraining
  11. Muscle Activation Coordination training
  12. Muscle Relaxation Training
  13. Muscle Re-Education

Nu-Tek Maxi Plus2 ETS

ETS treatment is especially useful for stroke rehabilitation and for pelvic floor rehabilitation in a variety of pelvic floor conditions. 

ETS starts with EMG Work / Rest training. Automatic or Manual Thresholds can be selected as preferable or required. If the patient/user reaches the threshold target the EMG triggers stimulation, which helps the patient/user hold the muscle contraction, The ETS mode in the Nu-Tek Maxi Plus2 enables the patient/user to stimulate weak muscles over the fixed periods of time after triggering, not just until the end of the Work period of the ETS EMG.

The ETS function has 2 custom programs and these can be set with 1 ETS phase furnished with required parameters.

ETS Parameters  

  • Program duration: 99 minutes maximum
  • Threshold: 0.6 – 2000 µV; During Work period the user/patient is prompted to contract above threshold. In the Rest period the user / patient is prompted to relax the muscles.
  • Filter: Wide / Narrow
  • Biofeedback: Above / Below / Continue / OFF; Above the threshold; Below the threshold; Continue-sound; OFF – no bar graph sound.
  • Work / Rest time: 2 – 99 seconds
  • Threshold setting: Auto / Manual
  • Trial: Number of Work / Rest repetitions, 2 – 99
  • STIM time: 1 – 99 seconds
  • Frequency: 2 – 100 Hz
  • Pulse width: 50 – 450 µS
  • Ramp up / Ramp down time: 0.1 – 9.9 seconds

For Custom Programs, the therapist /user can change all the EMG Biofeedback and Stimulation settings.

Nu-Tek Maxi Plus2 STIM Mode Operation

Nu-Tek Maxi Plus2 enables selection from the following modes:

  1. Urology
  2. Rehabilitation
  3. Pain
  4. Sport
  5. Fitness

Stimulation intensity is adjustable and should be set to a comfortable level. At the end of each session, average current intensity in mA is displayed.

  • Continuous Stimulation (CON): Stimulation can be continuous with frequency (HZ) and pulse duration (µS) staying the same throughout the program.
  • Synchronous Stimulation (SYN): Synchronous stimulation is Work/Rest stimulation with constant Hz and µS during Work time.
  • Alternating Stimulation (ALT): Alternating stimulation enables agonist and antagonist muscles stimulation (i.e. biceps/triceps) with one channel stimulation for a given time and alternating to the other channel stimulation for a given time – only one channel is stimulating at the given time).
  • Modulated Stimulation (MOD): In modulated stimulation, Work time stimulation is characterised by high Hz and low µS, whilst Rest time has low Hz and high µS. Ramp up and Ramp down frequency and pulse width modulate from high to low and vice versa. Level of mA remains the same on all channels. During Work / Rest continuous stimulation is applied.        

STIM Parameters

  • Program time: 1 – 99 seconds
  • Phase type: SYN, ALT, CON, MOD
  • Phase time: 1 – 99 minutes
  • Frequency: 2 – 100 Hz
  • Pulse Width: 50 – 450 µS
  • Ramp up / Ramp down: 0.1 – 9.9 seconds
  • Work / Rest time: 1 – 99 seconds

Conditions known to respond well to Stimulation

  1. Urinary and Rectal (Faecal) Incontinence
  2. Spasticity and Compromised / Weak Muscles
  3. Muscle Spasm
  4. Poor Muscle Tone
  5. Muscle Atrophy and Pain in Arthritis
  6. Poor Muscle Mobility and Range of Movements
  7. Poor Circulation and Compromised Muscle Blood Supply
  8. Warm up prior to exercise
  9. Fitness issues
  10. Sports
  11. Neurological complaints

Daily Progress Reports

Nu-Tek Maxi Plus2 has a built-in ability to store the Daily Compliance data as well as send the Daily Compliance data for storage and further analysis to a PC via the optional Nu-Tek System Software.

Nu-Tek Maxi Plus2 Statistics

After a session is completed, Nu-Tek Maxi Plus2 displays the statistics on its LCD screen. Additionally, for training EMG, ETS and STIM, it stores the first statistics and records them on a daily basis (i.e. per calendar date). When all phases of the session are completed, the statistics are displayed on the LCD.

The statistics collected include Work Average, Rest Average, Onset Time, Relax Time, Work / Rest Peak, Work Deviation, Rest Deviation, Stim Time, ETS Average, Threshold Average, ETS Score, STIM Average.

Nu-Tek Maxi Plus2 features Lock Mode and Memory Function.

Stimulation Electrodes to use with the Nu-Tek Maxi Plus2:

Nu-Tek Maxi Plus2 can be used with self-adhesive skin electrodes and with internal electrodes (i.e. vaginal probe, anal probe).

Most commonly used self-adhesive skin electrodes sizes: 50 x 50 mm, 50 x 100 mm, 40 x 40 mm or 30 mm diameter.  

Nu-Tek Maxi Plus2 Technical Specifications

EMG Specifications

  • Single channel EMG
  • EMG range: 0.2 – 2000 µV RMS (continuous)
  • Sensitivity: 0.1 µV RMS
  • Accuracy: 4% of µV reading +/- 0.3 µV at 200 Hz
  • Selectable Band pass filter – 3db Bandwidth
  1. Wide: 18 Hz +/- 4 Hz to 370 Hz +/- 10%
  2. Narrow: 100 Hz +/- 5% to 370 Hz +/- 10%
  • Notch filter: 50 Hz (Canada 60 Hz) – 33 dbs (0.1% accuracy)
  • Common Mode Rejection Ratio: 130 dbs Minimum @ 50 Hz
  • Battery: 4 x 1.5 V AA batteries
  • Work / Rest periods: 2 – 99 seconds
  • Number of Trials: 2 – 99

STIM (Neuromuscular Stimulation)        

  • Dual Channel Stimulator     
  • Amplitude: 0 – 90 mA into 1000 Ohm load – actual mA will tend to be less than indicated due to Electrode impedance
  • Type: Constant current, maximum output voltage 90 Volts + 10 / -10 Volts
  • Waveform: Symmetrical, rectangular, bi-phasic with net zero DC current
  • Pulse width selection: 50 – 450 µS (2% accuracy)
  • Pulse rate selection: 2 – 100 Hz (2% accuracy)
  • Work / Rest periods: 1 – 99 seconds
  • Time: 1 – 99 minutes
  • Ramp up time: 0.1 – 9.9 seconds
  • Pre-set programs and user programmable treatment programs
  • Lock Mode and Memory Function
  • Automatic output shut off with detection of open electrode above 1 mA
  • Low battery indication at 4V +/- 0.2 V, automatic shut off when voltage drops below the low indication
  • Automatic shut off to save energy, when device is not in use for over 3 minutes
  1. Environmental conditions for use: 5° C - 40° C, 15 – 93% Humidity
  2. Environmental conditions for storage/transport:  - 10° C - 40° C, 0 – 93% Humidity
  3. Atmospheric pressure: 700 hPa – 1060 hPa
  4. Dimensions: 153 x 75 x 34 mm (L x W x D)
  5. Weight: 200 g (excluding batteries)

Contraindications and Precautions

A full list of warnings and precautions is detailed in the User Manual supplied with the device. Please ensure that you read and familiarise yourself with the User Manual and all recommendations, warnings and precautions detailed. Retain the User Manual for reference and future use. Use the device only for prescribed indications/conditions.

Neuromuscular Stimulation should not be used in following instances:

  • Do not use if you have a pacemaker or intra-cardiac defibrillators or if you are connected to high frequency surgical equipment
  • Do not use when pregnant
  • Do not place skin electrodes over uterus or across the abdomen
  • When suffering with undiagnosed pain
  • Do not place skin electrodes over your heart, carotid sinus nerve, over larynx or trachea or inside mouths
  • Do not place skin electrodes over anaesthetised skin or desensitised skin 
  • Do not use on your face unless guidance from a medical professional

EMG - There are no EMG precautions, unless when used with vaginal probe:

  • Do not use during menstruation
  • Do not use when suffering inflammation or infection in the vaginal area of urinary tract
  • Do not use when there is absence of sensation due to denervation of the pelvic floor

Nu-Tek Maxi PLus2 - a perfect companion for sports and fitness and everyday life!  

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UK Shipping Schedule and Costs

UK delivery speed and cost are selectable in the Checkout. All orders are shipped in plain discreet packaging.

  • UK Regular Delivery (£5.50 + VAT):
    Delivery in 2 - 3 working days. Orders must be received before 2 pm (Monday – Friday).
  • UK Next Day by Courier (£7.50 + VAT):
    Next Day Delivery by Courier for orders received before 2 pm on working days (Monday to Friday) - expect delivery on next working day (Monday to Friday).  
  • UK Free Delivery Option for online only orders of £75.00 excluding VAT or more:
    UK Free Delivery Option for online only orders of £75.00 excluding VAT or more is free and takes approximately 3 - 4 working days.
  • UK Saturday Delivery (£21.66 + VAT):
    Saturday Delivery applies only to the UK Mainland Only. Saturday Delivery Orders must be placed before 2 pm on the Friday. Orders received after 2 pm on Friday will be delivered on Saturday on following week.    

Overseas Shipping Schedule

  • Overseas deliveries take approximately 7 - 14 working days depending on destination.
  • Shipping costs depend on the type of goods and the delivery address.
  • Cost of shipping is shown in the Checkout prior to the completion of the purchase.
  • VAT is removed automatically from all purchases for deliveries outside the EU.
  • Goods of value below £135 (Euros 150) to be shipped to countries of the EU are charged VAT at the rate of relevant EU destination country and shipped uder the IOSS scheme. 
  • We do not currently ship the goods over £135 / Euros 150 value to the EU countries.      



Nu-Tek Maxi Plus2 control unit dimensions: 153 x 75 x 34 mm (L x W x D) /  Weight: 200 g (excluding batteries)


  • Nu-Tek Maxi Plus2 kit consists of the Nu-Tek Maxi Plus2 unit, 1 set of 4 self-adhesive skin electrodes (50 x 50 mm), 2 sets of 2 self-adhesive skin electrodes (50 x 100 mm), Nu-Tek vaginal probe, 2 conductive leads, 1 reference lead, 4 x 1.5V AA batteries, holding cradle, colour illustrated User Manual with quick start guide, skin electrodes positioning guide sheet, carry case. CE mark Medical Device (CE0197). 1 year warranty on the Nu-Tek Maxi Plus2 unit.

VAT exemption is available, when purchased for personal use by people with relevant chronic conditions. VAT relief declaration must be completed online at the time of purchase.