Quadstar® ll, 4 channel - TENS, NMES & INF (pulsed sine wave)

  • Quadstar® ll, 4 channel - TENS, NMES & INF (pulsed sine wave)
  • Product Code: QuadStar® II – Multi-Modality Stimulator
  • Reward Points: 1398
  • Availability: In Stock
  • $699.00

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QuadStar® II – Multi-Modality Stimulator


The QuadStar® II is a portable four channel digital NMS, INF and TENS device. The unique device with 3 waveforms, symmetric biphasic, pulsed sine and asymmetrical biphasic can be programmed to deliver NMS, INF or TENS therapy .

There are 9 preprogrammed Fixed Sequences which enable the user to program 20 minutes of INF followed by 20 minutes of NMS therapy and ending with 20 minutes of TENS therapy. A Programmable Sequence allows the user to customize the therapy and times. A graphic representation of the timing parameters is shown on the screen to assist the user to program the on/off ramps and on/off times.

In addition there is a patient lock system when activated prevents the patient from changing any parameters. When the lock is turned off, a patient compliance meter is displayed.

The device comes with a Wall Adaptor.


Dimensions: 6.30" x 2.75" x 1.25" (160mm x 70mm x 32mm)
Weight: 11.4 oz. (323 grams)
Power Supply: 4 AA Batteries, type LR6
Channels: 4
Electrodes/Leadwires: 8
Tolerance: +/- 1%


Waveform: Pulsed Sine
CH1/CH3 (Carrier) Frequency: 4000 Hz
CH2/CH4 Frequency: 4001-4150 Hz
Beat Frequency: 1-150 Hz
  • CH1/CH2 are an Interferential Pair
  • CH1: Fixed Frequency (4000 Hz)
  • CH2: Adjustable 4001-4150 Hz
  • CH3/CH4 are an Interferential Pair
  • CH3: Fixed Frequency (4000 Hz)
  • CH4: Adjustable 4001-4150 Hz
Premodulated INF (Using one Channel): A mixed Interferential Beat Frequency will be produced only out of CH 1 and/or CH 3.
Constant: Beat Frequency is adjustable from 1-150 Hz
Sweep 1: Beat Frequency Modulates from 1-10 Hz and back over 12 seconds (6 second increase, 6 second decrease)
Sweep 2: Beat Frequency Modulates from 80-150 Hz and back over 16 seconds (8 second increase, 8 second decrease)
Sweep 3: Beat Frequency Modulates from 1-150 Hz and back over 20 seconds (10 second increase, 10 second decrease.
Intensity: 0-98 mA peak to peak
Output Voltage: 0-33 Volts peak to peak (adj.)


Waveform: Symmetrical, biphasic, square Asymmetrical, biphasic, square
Pulse Rate: Adjustable 1-120 Hz peak to peak
Pulse Width: Adjustable 50-400 uS
On Ramp: 0-10 seconds
On Time: 0-99 seconds
Off Ramp: 0-10 seconds
Off Time: 0-99 seconds
Modes: Constant Use the Constant Mode or a Pulse Rate greater than 60 Hz. for the relaxation of muscle spasms only. Use of continuous stimulation and/or rates above the normal physiological range (e.g., greater than 60 Hz) could lead to rapid onset of muscle fatigue, making the device less effective in producing repeated forceful muscle contractions. Cycled Reciprocating
Intensity: 0 - 120 mA from peak to peak (adj)Mo
Voltage: 0- 60 volts from peak to peak (adj.)


Waveform: Asymmetrical Biphasic Square
Pulse Rate: Adjustable 1-120 Hz
Pulse Width: Adjustable 10-250 µS

Constant: Pulse Rate (Hz) is adjustable from 1-120 Hz and Pulse Width (µS) is adjustable from 10-250 µS.

B (Burst): 8 Pulses per burst, 2 bursts per second. Pulse Width (µS) is adjustable from 10-250 µS.

M (Modulation): Pulse Rate (Hz) is Adjustable from 1-120 Hz and Pulse Width (µS) is adjustable from 10-250 µS and decreases 50% and back to set value over a 10 second cycle.

Intensity: 0-100 mA peak to peak
Voltage: 0-50 Volts peak to peak

QuadStar® II Downloadable Spec Sheet