Promotional price valid on web orders only. Your contract pricing may differ. Interested in signing up for a dedicated account number?
Learn More

3B Scientific™ Twin Stim™ Digital Electrotherapy Unit

A TENS and EMS combination for muscle stimulation and pain relief. The 3B Scientific Twin Stim™ Digital Electrotherapy Unit is a battery operated pulse generator that sends electrical impulses via electrodes to the body to reach the nerves and underlying muscle group.

Supplier:  3B Scientific™ W53104

Catalog No. S20712

Add to Cart

Includes: Stimulator, lead wires, one package of high quality self-adhesive electrodes, 9V battery, hard plastic carrying case, instruction booklet.



  • Choice of five modes of TENS and two modes of EMS
  • Dual Channel with isolation between channels
  • Asymmetrical, bi-phasic square pulse wave form
  • Stores 60 sets of operation records
  • Adjustable Pulse Amplitude: 0 to 100mA peak into 500 Ohm load each channel
  • Adjustable Pulse Rate: from 2 to 150Hz (1Hz/step)
  • Adjustable Pulse Width: from 50 to 300 microseconds (10μS/step)
  • Adjustable On Time: 2 to 90 seconds (1 sec./step)
  • Adjustable Off Time: 2 to 90 seconds (1 sec./step)
  • Adjustable Ramp Time: 1 to 8 seconds (1 sec./step)
  • EMS Modes: Two: Synchronous, Alternate
  • Total Recorded Time: 999 hours
  • Voltage: 0 to 50V
  • Adjustable Timer: from 5 to 60 minutes or continuous (adjustable in 5 minutes each step); Treatment time countdown automatically
  • Dimensions (L x W x H): 10.1 x 6.1 x 2.45cm
Requires prescription.

Warranty and Services

Three years.



Digital Electrotherapy Unit
Muscle stimulation and pain relief


Product Certifications


Provide Content Correction

We continue to work to improve your shopping experience and your feedback regarding this content is very important to us. Please use the form below to provide feedback related to the content on this product.

Product Title

By clicking Submit, you acknowledge that you may be contacted by Fisher Scientific in regards to the feedback you have provided in this form. We will not share your information for any other purposes. All contact information provided shall also be maintained in accordance with our Privacy Policy.

Cancel Submit