FDA-LISTED, CE-CERTIFIED, AND WITH CANADIAN MEDICAL DEVICE LICENSE*
*License number shown below for each product
TENS is the abbreviation for "Transcutaneous Electrical Nerve Stimulation". The electrical microcurrents of TENS are adjusted to send stimulating pulses over the skin and into nerve endings. These pulses decrease pain by blocking pain signals from reaching the brain, and also help stimulate production of endorphins, the body's natural painkillers. Common uses for TENS include back and neck syndromes, RSD (complex regional pain syndrome), arthritis, shoulder syndromes, neuropathies, and other acute and chronic pain.
Electrical stimulation for the treatment of muscle aches and pains has long been used by physiotherapists. But now you can treat yourself at home using the latest in TENS units that are completely safe, with the approval of the FDA and CE. For more on EMS, TENS, or other stimulation such as Galvanic or Interferential, see our Electrotherapy section in the left menu.
A prescription is needed for individuals buying TENS units in the US
No prescription is required for TENS replacement pads or wires
Concerned about Replacement Lead Wires? The main consideration when buying replacement lead wires ("cables") for your EMS device is the connection size, such as 2.0 mm or 3.5 mm. All TENS and EMS devices can usually use the same types of lead wires, provided the connection size is correct for the device.
Twin Stim Plus
9V battery or A/C Adaptor
1 X 9V
1 ~ 150 Hz,
45 adjustable frequencies
0 ~ 40 V
0 ~ 40 V
(500 ohm load)
0 ~ 50 V
1 - 60 minutes, or continuous.
1 separate timer per channel.
1 ~ 60 min
(1 min / step)
1 - 60 minutes, or continuous operation
Therapeutic Modes (*See explanation below)
8 modes: TENS: Burst, Normal, Modulation, and 2 Strength Duration modes/ EMS: Constant, Synchronous, and Alternate
5 TENS modes:
Burst, Normal, Modulation, SD1, and SD2
Asymmetrical bi-phasic square pulse
Asymmetrical bi-phase rectangular pulse
Asymmetric bi-phasic square pulse wave with 0 net direct current
138 x 78 x 28
95 X 60 X 25 (mm)
101 x 61 x 25 (mm)
*Therapeutic Modes: Most Basic TENS devices offer 3 modes: Normal (continuous train of impulses), Burst (several bursts per second of impulses), and Modulated or MRW (pulse rate and width are varied in a cycle to overcome the nerves' "accommodation" to steady stimulus). Further variation for different stimulation is offered if devices have Strength Duration or SD Mode (it alternates modulation of intensity with modulation of pulse width), and Bi-Pulse Mode (delivers different pulse rates at once to two channels). Some devices add two EMS modes, Asymmetric and Symmetric, for stimulating muscle contractions. It is best to consult your doctor to get advice on which TENS device is suited to your needs.
Please Note: FDA requires a prescription for the sale of electrotherapy devices to individuals in the U.S. You can use our Word file at our PRESCRIPTION LINK, or your Health Care Provider can use his/her own prescription form.
with your purchase of
any electronic stimulator