How many uses can I get from the pads?

An average user will get approximately 10-15 uses per pack of the electrodes included with the Twin Stim III, depending on how frequently they are used and for how long, as well as the user's skin type. Once the adhesive gel wears off, you can simply discard the electrodes and begin with a new pack of pads, but note that each unit comes standard with only one pack of four individual electrodes.

Are you able to customize/change the TENS and EMS settings to your own preferences?

YES! The Twin Stim III has 4 different adjustable modes for TENS, and 3 different adjustable modes for EMS, that can each be set to your own preference.

Is this device FDA approved?

Yes, the InTENSity Twin Stim III is FDA 510K-approved.

Are you able to use the EMS and TENS modes at the same time with this unit? Or is it one mode or the other and you can only switch between the two modes?

The Twin Stim III only allows a user to run a TENS therapy treatment, OR EMS, at one time, not both simultaneously. You can only switch from one or the other.

Can you use the AC adapter with a normal battery in the unit at the same time? Will it drain the battery while using the AC adapter?

Yes, you can use the unit with the AC Adapter, while a battery is inside the device as well. If plugged in, the AC Adapter will simply bypass the battery and power the device that way.

I travel overseas a lot. Is the unit/AC adaptor dual voltage so that it can be used overseas at 220v?

Yes! The AC Adapter for our InTENSity devices are 120v/240v, so they may indeed be used overseas with a 220v outlet.

What unit and accessories should I get for Tennis Elbow? What size pads, etc.?

Unfortunately, since we do not staff doctors here, we can not suggest specific electrotherapy treatments. We highly recommend first consulting with a doctor/medical professional about your particular case, and if they recommend an electrotherapy treatment for you, such as TENS, EMS, Interferential, Russian Stim, etc., then we can certainly better assist in helping you select the right device for your needs.

Can this unit be used on the face for TMJ?

It is generally not recommended to use an electrotherapy treatment on the face, but please always consult with a doctor/medical professional prior to considering such a treatment, to see if it is right for you. For TMJ, you may also want to ask specifically about Microcurrent vs. TENS vs. EMS.

Does this unit come with electro sticky pads?

Yes, every electrotherapy device we carry comes standard with a pack of 4 electrodes inside of the carrying case to get you started. You can refer to the Product Description on this page to see all items/accessories that come included in each package. We always recommend that you consider stocking up though whenever purchasing a new unit since the electrodes will be the #1 thing you will ever have to replace in time.

Is this unit recommended for wrist and finger extension post stroke?

We recommend first consulting with a doctor/trained medical professional to see if an electrotherapy treatment such as TENS or EMS would be a good fit for your particular case. If so, then all we can do is help provide more technical sort of information as it relates to our items. Feel free to browse our selection, and if you have any specific questions, you can always give us a call or send us an email and we will be happy to assist further in any way we can.

EMS stands for Electrical Muscle Stimulation. You should always consult with a doctor/medical professional first to see if an electrotherapy treatment, such as EMS, is right for you.

Does this unit have a belt clip on the back?

Yes, each unit comes standard with a removable belt clip attached.

SHOPPING CART: (0) ITEMS

Questions?
Call The Pros!
888-724-1121

Business Hours:
Monday-Friday
9am-5pm CST

Free Shipping On Orders Over $49

For All Orders That Ship Within The 48 Continental States Only

Home > TENS & Electrotherapy > InTENSity Devices > InTENSity Twin Stim III Digital TENS & EMS Combo Unit + Free AC Adapter Included

InTENSity Twin Stim III Digital TENS & EMS Combo Unit + Free AC Adapter Included

Part Number:

DI3717

Availability:

In Stock

On sale: $39.95

127 Review(s)

Instruction Manual:Click Here
Quick Start Guide:Click Here
New Model Available:Click Here

Questions about this item? Ask here.

(See 25 Questions)

Quantity

Quantity Discount Pricing

Quantity
Price
6 - 31
$36.95
32 - 63
$34.95
64+
$32.95

Description
Customer Reviews
Questions and Answers

The InTENSity Twin Stim™ III is a portable electrotherapy device featuring two therapeutic modes: TENS & EMS therapy, which are used for pain relief and muscle stimulation. The unit is among the upper echelon of pain relief devices, with a maximum output of 105mA, and it also comes standard with an AC Adapter and removable belt clip for easy, at-home use and convenience.

Relieve your pain by using the TENS Mode.

TENS is a non-invasive, drug free method to control your pain by sending tiny electrical impulses through the skin. In many cases, this stimulation will greatly reduce or eliminate pain.

Strengthen your muscles by using the EMS Mode.

EMS is widely used in hospitals and sports clinics to treat muscle injuries, to re-educate paralyzed muscles, and to prevent atrophy in affected muscles.

Product Features & Specifications:

Simple-to-operate, portable electrotherapy device for pain management
Unit combines TENS & EMS therapy for optimal treatment
Channels: Dual Channel
Pulse Amplitude: Adjustable, 0-105 mA
Voltage: Constant Current, 100-240V (AC Adapter)
Pulse Rate: Adjustable, from 1 to 150 Hz
Pulse Width: Adjustable, from 50 to 300 microseconds, 10µS/step
Wave Form:

TENS: Mono-phasic Square Pulse
EMS: Mono-phasic Square Pulse

Power Source: 1x 9-volt Battery, or Free A/C Power Adapter included for home use.
Timer: Adjustable in 1-minute increments between 1 and 60 minutes or Continuous. Treatment time counts down automatically.
Dimensions: 4.5" x 2.55" x 0.9"
Weight: 0.28 lb with battery
1 Year Manufacturer Warranty
Package includes everything needed to start using the device right away:

Twin Stim III unit
45" Lead Wires
1x package of 4x high quality Self-Adhesive Electrodes
1x 9V Battery
A/C Power Adapter
Hard Plastic Carrying Case
Instruction Booklet

Electrotherapy Programs:

4 TENS Modes:

Burst

Burst Rate adjustable from 0.5 - 5Hz, pulse width from 50-300µS, frequency fixed at 10Hz

Normal

Continuous stimulation with adjustable pulse rate & width

Pulse Width Modulation Mode (Modulation 1)

Pulse width decreases to 60% in one cycle, and increases back to original value in following cycle.
Pulse rate, pulse width, and cycle time are adjustable.

Pulse Rate Modulation Mode (Modulation 2)

Pulse Rate decreases to 60% in one cycle, and increases back to original value in following cycle.
Pulse rate, pulse width, and cycle time are adjustable.

EMS Mode Specs

Ramp Time:

Adjustable from 1-6 seconds.
Determines the time to reach set output level from zero, and from set output level to zero.

On / Off Time:

On time controls contraction time, adjustable from 1-60 seconds.
Off time controls relaxation time, adjustable from 0-60 seconds.
3 EMS Modes:

Synchronous (S)

Synchronized stimulation of 2 channels.
Ramp duration, ramp up, ramp down, pulse rate, & pulse width are all adjustable.

Asynchronous/Alternate (A)

As per Synchronous Mode except that stimulation of Channel 2 occurs when contraction of Channel 1 is complete.

Delay (D)

As per Synchronous Mode except that stimulation of Channel 2 begins after adjustable delay after Channel 1 stimulation begins.

View All Reviews

Recommended!

I have used my tens-pro a number of times now to alleviate pain in my shoulder and arm. I am so pleased with the product that I would recommend it to my friends and family, which I have. Thank you so much for such a good quality device designed to stimulate health.

Did you find this helpful? 62 of 64 Found Helpful

Reviewed by: Keith from Texas. on 6/17/2015

Retired

This little unit does everything I wanted it to do at a much lower cost than the "loaner" unit I got through Medicare. When the "loaner" had to go back due to the end of my Physical Therapy (but not the end of my pain), I went in search of a EMS unit with similar capability. It works great for the muscle stimulation my leg requires 3-4 times per week.

Did you find this helpful? 54 of 56 Found Helpful

Reviewed by: Craig from Oregon. on 8/16/2015

Best investment I could have made

My tens and ems combo unit is great. I am so glad I found this unit it works great with the battery or with the power cord. Such relief when using it. I would recommend this to everyone I know. Thanks a very satisfied customer.

Did you find this helpful? 33 of 34 Found Helpful

Reviewed by: Marc from RI. on 6/3/2015

Great device for my muscle pain. Made a great difference in only a couple uses

Did you find this helpful? 26 of 27 Found Helpful

Reviewed by: Lester B Davis from Indiana . on 6/24/2015

Great!

The tens machine is great! I use it on my shoulder everyday to help relieve pain. Thank you for all your help.

Did you find this helpful? 25 of 26 Found Helpful

Reviewed by: Gary Konrad from California. on 6/15/2015

Nice unit, lousy user manual

This unit is well made and works well. It is also complex and the manual is totally inadequate. There could be an online video showing how to use the myriad settings -but there isn't. Four stars for the unit, one star for the manual.

Did you find this helpful? 22 of 22 Found Helpful

Reviewed by: Sam Kanter from Nyc. on 1/6/2014

cranky back king

This little item packs a good wallop! Surprising battery life for the power it puts out. The stim units at my physio therapy office. Shut off before they reach a level that is strong enough for me.This little unit goes plenty high enough for even someone who likes the juice turned up. I am very happy with the product. And have already recommended it to others !

Did you find this helpful? 15 of 15 Found Helpful

Reviewed by: James from CA. on 9/7/2014

MRS

Great little TENS, clearer operating instructions would help a new user. Currently the booklet is confusing. Needed MFG to phone for proper operation information. Otherwise excellent machine. Would like to see a cord minder created to keep the wires in control.

Did you find this helpful? 13 of 13 Found Helpful

Reviewed by: Barbara Draeger from Panama City FL. on 12/2/2013

Store Manager for a DME store.

This item was ordered for a patient of ours that was needing both the TENS and muscle stimulation in one device. We haven't had any complaints from the patient on the device. The only complaint given was that the electrodes provided didn't quite last the full month.

Did you find this helpful? 13 of 13 Found Helpful

Reviewed by: Kristal from Kansas. on 10/24/2013

TENSer

This unit is strong, has a nice auto shut off, and does relieve pain. Two reasons I give it 4 stars vs. 5 ....it beeps with each and every change as you set it up. This is a problem if you use it at night and sleep in the same room as someone else. Also, it is not user friendly....you must really pay attention to the manual (and even then it is confusing).

Did you find this helpful? 11 of 11 Found Helpful

Reviewed by: TENSer from California. on 8/18/2014

Average Consumer

Wonderful unit with many features. Be sure to get the best quality pads if you use the unit frequently. I can't say enough good things about Tenspros as a company. I have dealt with them a few times now ordering supplies for my unit and what great customer service and compassion they have for those of us who suffer with chronic back pain

Did you find this helpful? 10 of 10 Found Helpful

Reviewed by: Lloyd from OH. on 3/26/2014

TENS & EMS unit

I have experienced some relief from localized pain. The directions are very difficult to understand ( even when read by a doctor). Have no idea if there is a better way to use it since the directions are so difficult.

Did you find this helpful? 10 of 10 Found Helpful

Reviewed by: Janet from St Louis. on 10/7/2014

Great Gadget

This handy little machine gives mother massaging relief from arthritic joint pain. It is a great value, easy to use and the A/C adaptor is a great add on. Although the model we bought has both tens and muscle stimulator capabilities, we have only used the tens. We couldn't be more satisfied.

Did you find this helpful? 9 of 9 Found Helpful

Reviewed by: (Verified Buyer) SANDRA RODOLF from Palm Harbor, FL. on 4/13/2014

Pain Relief

I have been suffering from low back pain for months. Don't like to take too many pain meds. As soon as I put this unit on, it gave relief of the pain. It is wonderful. It is very comfortable. The only reason I didn't give it 5 stars is that it shuts itself off so much. I have it set to remain on continuously. Many times when I just turn it on or increase the intensity, as soon as I hook it to my belt, it goes back to zero and I have to reset it.

Did you find this helpful? 9 of 9 Found Helpful

Reviewed by: Nancy from Illinois. on 7/18/2014

Outstanding TENS, easy to use

This is the first TENS unit I've purchased, and I couldn't be more pleased. I use it on my injured shoulder after experiencing the stimulation unit used by my physical therapist. The AC adapter allows me to conserve batteries by using the unit plugged in as much as possible.

Did you find this helpful? 8 of 8 Found Helpful

Reviewed by: Shirley from MO. on 9/15/2014

Review of InTensity Twin Stem Machine

My husband and I like this machine, and we use it almost daily. We did find the initial instructions difficult and we had to call to see how to set it up to start using it. One we started using it, we have found it to be a quality product that does what is advertised.

Did you find this helpful? 7 of 7 Found Helpful

Reviewed by: Connie from Texas. on 10/24/2014

owner

Bought this for my wife and it has helped her with her lower back pain.she now thanks far less pain meds that be for.at this price a would say that everyone should have one in there home.

Did you find this helpful? 6 of 7 Found Helpful

Reviewed by: michael from ohio. on 11/12/2014

Great item!

This TENS & EMS unit is working wonders for me. When added to my exercise routine and my medication I get a longer relief period from my local pain. The unit is compact, portable, and takes a bit of practice since the instructions are somewhat difficult to follow. The AC adapter saves on batteries and is a great addition to the entire product. Glad I purchased it!

Did you find this helpful? 5 of 5 Found Helpful

Reviewed by: Walter from Lynchburg, VA. on 10/26/2014

Love it. Pluses are strong and with the AC adaptor, don,t need to worry about length of time or the batteries growing weak.

Did you find this helpful? 4 of 4 Found Helpful

Reviewed by: Tom from San Diego, CA. on 9/16/2014

treat the pain in the neck

the physical therapist recommended this product, and set it up. It is very helpful with the pain management and the nerve stimulator. Very easy to use and can be worn almost anywhere.

Did you find this helpful? 4 of 4 Found Helpful

Reviewed by: Debbie from Cortlandt Manor. on 12/12/2014

Love this unit!

I loved this unit so much that I bought 2 more for my sons! They love it to. Plenty of settings for different aches and pains. Very easy to use! Would definitely recommend and would definitely purchase again as well!

Did you find this helpful? 3 of 3 Found Helpful

Reviewed by: Patty from Ohio. on 11/28/2014

I purchased this unit because I had sciatica and it really helped. I would strongly recommend it because there are so many ailments you could use it for not just sciatica.

Did you find this helpful? 3 of 3 Found Helpful

Reviewed by: Beth Boryk from Florida. on 6/3/2015

Excellent Purchase

I have no complaints regarding my purchase. It took me awhile to get the hang of it since it is the first time I have used this type of instrument. Nevertheless, I was able to use it without any hassle. It is very user-friendly. It is a great buy!!!

Did you find this helpful? 2 of 2 Found Helpful

Reviewed by: rafael espinal from New York City. on 10/19/2014

P T

TENS UNIT, EMS IS BEST OF DRUGFREE PAIN RELIEVER. MANGOK NEED THIS MACHIN.

Did you find this helpful? 2 of 3 Found Helpful

Reviewed by: MANGOK from New port richey. Florida. on 2/26/2014

works great great price its a great product for the back my wife uses this alot to help her through the day,one of the best buys weve ever made i got one for my self because it was such a great price

Did you find this helpful? 1 of 1 Found Helpful

Reviewed by: jay lindburg from usa. on 7/16/2015