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InTENSity Twin Stim III Digital TENS & EMS Combo Unit + Free AC Adapter Included
Each package includes everything needed to begin therapy right away!

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

Part Number:

DI3717

Availability:
In Stock
813520011186 NewCondition

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Quantity Discount Pricing
  • Quantity
  • Price
  • 10 - 31
  • $44.95
  • 32 - 63
  • $43.95
  • 64 - 95
  • $42.95
  • 96+
  • $42.50
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.

5 Stars
PTA
We use these as extra units in our outpatient clinic and I love them. I bought one for my mom to use at home because of how easy it is use. It also doesn’t feel like it’s “biting” like other portable units do. Another reason this is a great unit is how affordable it is for what you get, and you can’t beat that!
Did you find this helpful?  1 of 2 Found Helpful
Reviewed by:  from Georgia. on 1/1/2024
5/5
5 Stars
Great device
Quality product that does just what I need for EMS
Did you find this helpful?  1 of 1 Found Helpful
Reviewed by:  from PORTLAND. on 11/12/2023
5/5
5 Stars
Works great
I call this my “shock therapy” and use it every day. Two of my therapists showed me what to do so that I use it correctly. The machine does what I need it to and I like how it can be set up. Strokes suck, but this machine helps rehabilitate.
Did you find this helpful?  2 of 2 Found Helpful
Reviewed by:  from Utah. on 9/15/2023
5/5
5 Stars
owner
Great service and quality products!
Did you find this helpful?  1 of 1 Found Helpful
Reviewed by:  from Grand Rapids. on 9/15/2023
5/5
5 Stars
Mr.
Good quality. These units are as effective for me as those that I've experienced in a professional treatments.
Did you find this helpful?  1 of 1 Found Helpful
Reviewed by:  from U.S.A.. on 7/21/2023
5/5
5 Stars
none
Stickers hurt the first time you pull off but it gets easier so no worries there . Item works as advertised . now just waiting for results .
Did you find this helpful? 
Reviewed by:  from california. on 7/10/2023
5/5
5 Stars
Tens unit
This is my 3rd one I have bought. I bought one for myself , and bought each of my daughters one, for their birthdays. After using mine, they loved the results. I bought them each some supplies to go with them, and they are set. Now I don’t have to lend mine out, and really need it when someone else is using it. I also gave another friend the order info for your online order site, and she wants to buy one too. My husband has been using mine too, as he also likes it. Need I say more about your product. As you can see, we think it’s really great.
Did you find this helpful?  1 of 2 Found Helpful
Reviewed by:  from Va. Beach, va.. on 6/4/2023
5/5
4 Stars
Ms.
Product works as advertised and has been helping with the improvements we needed. Also, most people might need a professional to explain where/how to properly place the electrodes. Only issue is that the electrodes lose their stickiness very quickly; easy fix is to clean after every use (just that it is inconvenient). Otherwise happy with the purchase.
Did you find this helpful?  3 of 3 Found Helpful
Reviewed by:  from Atlanta, GA. on 3/26/2023
4/5
5 Stars
Ms.
I am pleased with the TENS; it provides temporary relief from shoulder/back pain.
Did you find this helpful?  2 of 2 Found Helpful
Reviewed by:  from Sebastopol. on 12/11/2022
5/5
5 Stars
Ease of use
Its a very nice and easy to use. I still cant get it to open my fingers. Its hard to figure out where to put the pads. But i use it every day and i got my thumb to move
Did you find this helpful?  2 of 2 Found Helpful
Reviewed by:  from Mountain dale, ny. on 12/1/2022
5/5
5 Stars
Great purchase!
Quality device, works as promised.
Did you find this helpful?  2 of 2 Found Helpful
Reviewed by:  from Iowa. on 9/1/2022
5/5
4 Stars
Mr.
Excellent product with somewhat obscure documentation. Once you have worked with the unit, the documentation becomes easier to interpret, but it is not well organized, and is confusing for someone that is not technically inclined or experienced with electronics.
Did you find this helpful?  9 of 9 Found Helpful
Reviewed by:  from Kelseyville. on 7/4/2022
4/5
5 Stars
Great device
Very easy to use, well built affordable
Did you find this helpful?  5 of 7 Found Helpful
Reviewed by:  from Syracuse, ny. on 5/31/2022
5/5
5 Stars
Doctor of Chiropractic
I've been using TENSpro's products for a long time and was happy to see this particular inexpensive programmable unit. I have been using a relatively new therapy for stress relief in patients called Transcutaneous Vagus Nerve Stimulation (tVNS) which requires a specific range for pulse rate. This unit is exactly what I need for my patients--I've been recommending that they get it along with the metallic-rubber earclips that are required for tVNS. Glad that TENSpros are able to keep up the supply for my increasing demand from my patients! tVNS may help with PTSD, tinnitus, inflammation reduction, possibly even hypertension and digestive disorders--anything that gets dys-regulated when over-stress causes vagus nerve "disruption".
Did you find this helpful?  18 of 19 Found Helpful
Reviewed by:  from Odenton, MD. on 3/23/2022
5/5
5 Stars
Ms
This unit is a bargain for all that it does. It has been very impactful on tight sore muscles
Did you find this helpful?  5 of 8 Found Helpful
Reviewed by:  from Colorado. on 3/2/2022
5/5
5 Stars
Mr.
I love this thing!!!!
Did you find this helpful?  4 of 7 Found Helpful
Reviewed by:  from Fl.. on 2/6/2022
5/5
5 Stars
Ms
Happy with the easy to use for this product. I have been in the market looking and my Physical Therapist suggested this product and it has been used often with my recent shoulder surgery to help with recovery. I definitely recommend it for anyone that is an athlete.
Did you find this helpful?  5 of 5 Found Helpful
Reviewed by:  from Fair Oaks. on 1/21/2022
5/5
5 Stars
Helpful Home Unit
This product has helped with my arm rehabilitation by stimulating my deltoid, biceps and rotator cuff muscles. I highly recommend.
Did you find this helpful?  6 of 6 Found Helpful
Reviewed by:  from Skandia. on 11/19/2021
5/5
5 Stars
Mr
Excellent easy to use device. Does what its supposed to and for a fair price.
Did you find this helpful?  6 of 7 Found Helpful
Reviewed by:  from Iowa. on 10/10/2021
5/5
5 Stars
Mrs
First, my husband loves the relief he is getting from the TENS unit. Second, I love the relief he is getting. It took us a while to figure out how to operate the unit...but now, we got it down. Great product. Great Service.
Did you find this helpful?  9 of 9 Found Helpful
Reviewed by:  from richmond, va. on 9/14/2021
5/5
4 Stars
mr
works as adveriised
Did you find this helpful?  1 of 3 Found Helpful
Reviewed by:  from usa. on 9/2/2021
4/5
5 Stars
user
I purchased this unit because I have been having dull aching back and leg pain. I was surprised that after the first treatment, the pain seemed less intense. Not miraculously gone, but it was more tolerable to function with. I have been seeing a chiropractor who asked me to bring in the unit. After looking it over and downloading the manual for me, she printed out some recommended settings for me to use and told me I had purchased a very good unit. I have been following her recommendations and I can honestly say it has helped me function a lot better. I got a very good price for the unit and some of the associated equipment. It was a very good investment for me and I would not hesitate to recommend it to anyone who has some type of pain or discomfort. There are quite a few settings to choose from and the best thing to do is experiment with what feels best for your specific condition. No complaints about it from me
Did you find this helpful?  14 of 15 Found Helpful
Reviewed by:  from MADISON. on 8/8/2021
5/5
5 Stars
Ms
This product has been very effective in relieving pain when other options have not worked. I am very thankful for the pain relief.
Did you find this helpful?  4 of 4 Found Helpful
Reviewed by:  from Oregon . on 7/10/2021
5/5
5 Stars
mr
We love this equipment. My wife has weak wrists and was in constant pain, using copper gloves to support her wrists. But with the TENS she now only uses the cloves at her repetitive motion job.
Did you find this helpful?  5 of 5 Found Helpful
Reviewed by:  from ocala. on 5/23/2021
5/5
5 Stars
My new Tens unit
Several years ago, my back surgeon at Cedars-Sinai hospital recommended I get a tens unit for chronic back pain following major surgery, which I did for many years, off and on. Then came a need recently for a flair up of pain and I dug out the old unit. It had been stored too long I guess and did not function as well. I ordered your unit, received it promptly and use it when ever I feel the need for relief! Works great, you can increase or lower the intensity easily and I am very pleased to have a very good product handy when the need for relaxation arises. It is also very handy to be able to be mobile and worn everywhere as you keep a busy schedule. You do not have to recline or be stationary to use. Love it!!!
Did you find this helpful?  13 of 13 Found Helpful
Reviewed by:  from Apple Valley. on 4/9/2021
5/5
5 Stars
Tens / ems unit
Excellent product. Works great for my herniated disks. My wife uses it also for her neck. Great device. Don’t hesitate
Did you find this helpful?  10 of 10 Found Helpful
Reviewed by:  from Pa. on 2/9/2021
5/5
5 Stars
Bill60
Excellent product, since I have received for Christmas I use it 3 - 4 times per week. It clearly helps those sore muscles heal quickly.
Did you find this helpful?  9 of 9 Found Helpful
Reviewed by:  from Florida . on 1/12/2021
5/5
5 Stars
Mrs
I am a nurse practitioner. This product was recommended to me by a patient with chronic back pain. It was recommended to him by his neurologist. I ordered one for my husband for his hip pain, but after trying it on my neck, I use it more than he does. The instruction book is difficult to navigate but we have figured out how to use the tens portion and it is amazing. It is well worth the investment.
Did you find this helpful?  15 of 15 Found Helpful
Reviewed by:  from Illinois. on 1/8/2021
5/5
4 Stars
Mr.
Been using Tens and Ems stimulator for about a month, it does what ie says it does. I may not be using it to it fullest but at this point i'm happy with it.
Did you find this helpful?  8 of 8 Found Helpful
Reviewed by:  from Sarasota. on 12/27/2020
4/5
5 Stars
Love it!
I love my TENS unit. It does wonders!
Did you find this helpful?  3 of 3 Found Helpful
Reviewed by:  from Sparta. on 11/30/2020
5/5
5 Stars
Highly Satisfied Customer
I ordered the TENSPRO unit for myself due to my injury/post surgery and I was impressed with the fast delivery, however my product came defective and so I called and they just asked me few questions about the product and send me the replacement. I am happy with the replacement as it works perfectly fine. I ordered another TENSPRO for my mom and there was no problem at all.
Did you find this helpful?  8 of 8 Found Helpful
Reviewed by:  from Las Vegas. on 11/28/2020
5/5
5 Stars
Patient, former biomedical technologist
My physical therapist recommended this specific model. Well, as an old biomed tech I had to do my own homework and check out all the other models and other suppliers. Spent hours looking carefully at all the available data. Bottom line- I don't see how you could do better than this unit for basic TENS. The EMS mode is a very nice option to have as well, though I personally haven't needed it. This unit has the perfect amount of settings and options. It is well designed and efficient. My PT knew exactly how to get his patients the best device at an unbelievably low price. Would absolutely recommend this to others.
Did you find this helpful?  22 of 22 Found Helpful
Reviewed by:  from Idaho, USA. on 11/21/2020
5/5
5 Stars
Ten Pro
I have been dealing with back issues for most of my adult life. In the past 2 years things have gotten really bad. I have been to therapy, had shots , taken meds, done chiropractic care. Thie ten pro is similar to what my chiropractic uses. I love it !! It takes away pain and I feel is helping me heal.
Did you find this helpful?  7 of 7 Found Helpful
Reviewed by:  from New Fairfield Ct. on 10/13/2020
5/5
5 Stars
Excellent
This product exceeded my expectations. My loved ones have purchased their own on the strength of its ease of use and consistent experience.
Did you find this helpful?  6 of 6 Found Helpful
Reviewed by:  from San Francisco. on 8/7/2020
5/5
5 Stars
Mr
We are extremely satisfied with this purchase. My wife had broken her upper arm bone and while rehab helps but to get the relief from pain, she uses this machine all the time. And it works!
Did you find this helpful?  5 of 5 Found Helpful
Reviewed by:  from Livonia. on 7/23/2020
5/5
5 Stars
Mr
Excellent Rehabilitation aid for re engaging hand function after a stroke , bought the tens three for my wife , its early days yet but there is a marked improvement and she is able to flex her fingers and hold items , still with a week grip but its a vast improvement and thanks to the Specialist who has put instructions on YouTube , the future looks bright . The ramp function or the rate at which the power builds up and falls is particularly good and controllable , a function not readily available on a vast number of Tens machines which generally have set programs and limited control .
Did you find this helpful?  13 of 13 Found Helpful
Reviewed by:  from United Kingdom. on 7/20/2020
5/5
5 Stars
Customer
I bought this for my dad who has moderate to severe foot pain related to Type 2 Diabetes. The device has helped ease his pain and he loves it.
Did you find this helpful?  5 of 5 Found Helpful
Reviewed by:  from Ohio. on 7/18/2020
5/5
5 Stars
Great purchase!!!!
Absolutley love this unit!!! I am on my 3rd battery already because it stays on my back! I would recommend till anyone who is experiencing nerve pain in their back.
Did you find this helpful?  7 of 7 Found Helpful
Reviewed by:  from Albertville. on 7/10/2020
5/5
5 Stars
Business owner
Excellent products. Excellent price. Quick shipping
Did you find this helpful?  3 of 3 Found Helpful
Reviewed by:  from NM. on 7/7/2020
5/5
5 Stars
Care partner
As advertised,works great shipping was sooner than expected
Did you find this helpful?  4 of 4 Found Helpful
Reviewed by:  from Oregon. on 6/13/2020
5/5
5 Stars
Ms.
The price was great and it's a great little unit. Shipping was quick. Totally recommended.
Did you find this helpful?  6 of 6 Found Helpful
Reviewed by:  from Schenevus NY . on 6/6/2020
5/5
5 Stars
Works surprisingly well
I was shocked it works so good .for years I've had painful leg swelling in the morning when I wake up l used tens unit on N setting for a hour a day no more swelling no more pain.
Did you find this helpful?  5 of 5 Found Helpful
Reviewed by:  from Greensboro. on 6/1/2020
5/5
5 Stars
Worth it
It got shipped really fast. I purchased it for my mom. She had knee surgery a few years ago and so far this product has been helpful in easing her discomfort.
Did you find this helpful?  4 of 4 Found Helpful
Reviewed by:  from Princeton. on 5/30/2020
5/5
5 Stars
None
Love this little darling. User friendly does exactly what it’s supposed to
Did you find this helpful?  4 of 4 Found Helpful
Reviewed by:  from Sharpsburg . on 5/25/2020
5/5
5 Stars
Great
Had problems at first until I learned how to program the machine. It has helped Greatly with reducing my muscle spasms and the pain.
Did you find this helpful?  7 of 8 Found Helpful
Reviewed by:  from Pittsburgh. on 5/14/2020
5/5
5 Stars
Mr
Great compact unit still on a learning curve but so far it's easing the pain in my side and lower back
Did you find this helpful?  5 of 5 Found Helpful
Reviewed by:  from Jupiter. on 4/10/2020
5/5
5 Stars
InTENSity Twin Stim III
very excellent unit, I was using a very old tens unit and it would shock you if a pad would lossen, this one shuts off if that happens, the best thing abut this one it does a thumping motion that goes up to where you set it then down and up repeatedly to the amount of time you set, I've been doing a lot strenuous work lately and I use it on my back when I get in the house, wake up in the morning no back pain. I highly recommend this unit.
Did you find this helpful?  10 of 11 Found Helpful
Reviewed by:  from Perry. on 4/7/2020
5/5
5 Stars
Great product
Does exactly what I wanted it to do, I saw no problems or downsides so far
Did you find this helpful?  7 of 7 Found Helpful
Reviewed by: (Verified Buyer)  from Ukraine. on 3/30/2020
5/5
5 Stars
Adult
Very easy to use dual combination unit. Would recommend to anyone.
Did you find this helpful?  7 of 7 Found Helpful
Reviewed by:  from CA. on 3/1/2020
5/5
5 Stars
Patient
I bought this unit for the estim portion to use on my arm and leg to assist with the the recovery from San stroke. While it does what it says as far as moving the affected limbs only time will tell if it is effective
Did you find this helpful?  7 of 8 Found Helpful
Reviewed by:  from Bainbridge, Ga. on 2/13/2020
5/5

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