TENS Module




Traditional or conventional TENS

Emits short pulses (50 - 125 µs) at high frequency (90 - 130 Hz) and low intensity.

Stimulates the pain gate mechanism. Results in a rapid onset of analgesia but the effects do not remain relatively long post-treatment.


Operates at low frequencies (2 - 5 Hz) and high intensity with a pulse width of approximately 200 µs.

Stimulates the opioid mechanism. Results in a slower onset of analgesia but the effects last longer compared to conventional TENS. AL-TENS also causes muscle contractions due to the stimulation of motor nerves.

Brief intense TENS

Emits a high frequency (100 - 150 Hz) current with a long pulse width (150 - 250 µs) using an amplitude near the patient tolerance threshold for a duration of 15 minutes or less.

Results in a very rapid onset of analgesia with relatively long lasting effects. Stimulation may feel uncomfortable due to the high intensity.

Burst mode TENS

Burst mode TENS combines both high and low frequencies by using a baseline low frequency current while delivering high frequency bursts of electrical pulses.

Activates both the pain gate and opioid mechanisms. Burst mode TENS still requires high intensity, but it is more comfortable in comparison to brief intense TENS.

Modulated mode TENS

Modulation mode TENS varies the frequency, intensity or pulse duration through a cyclic sequence starting from a baseline value to a pre-set value and back again.

The variation in stimulation pattern helps to reduce accommodation effects.