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TENS & Electrotherapy
InTENSity Devices
InTENSity Twin Stim III Digital TENS & EMS Combo Unit [+5 FREE Packs of InTENSity 2" x 2" Electrodes]
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InTENSity Twin Stim III Digital TENS & EMS Combo Unit [+5 FREE Packs of InTENSity 2" x 2" Electrodes]
5/5 rating
209
Review(s)
209
5
5/5 rating
1
5
Write a Review
EP2020WC2-INTM-2_5
Questions about this item? Ask here.
Instruction Manual:
Click Here
Quick Start Guide:
Click Here
Alternative Offer:
Click Here
Promo:
Buy 1 Unit, Get 5 FREE Packs of Electrodes In Your Package!
Your Price:
$47.50
Retail Price
Retail Price:
$54.95
Your Savings:
$7.45
(14%)
Part Number:
DI3717
Availability:
In Stock
Choose Product Options and/or Extra Supplies
Electrodes
Electrodes
TENS Pros Electrode Variety Starter Bundle (+$24.95)
1.5" x 1.5" Square Ultra Premium Tan Cloth Electrodes (TYCO Gel) - 4/pack (+$1.75)
1.5" x 1.5" Square Ultra Premium Tan Cloth Electrodes (TYCO Gel) (10 Packs) (+$17.50)
2" x 2" Premium White Cloth Electrodes - 4/pack (+$1.95)
2" x 2" Premium White Cloth Electrodes (10 Packs) (+$19.50)
2" x 2" Square Ultra Premium White Foam Electrodes (TYCO Gel) - 4/pack (+$2.95)
2" x 2" Square Ultra Premium White Foam Electrodes (TYCO Gel) (10 Packs) (+$29.50)
2" x 3.5" Rectangle AntiMicrobial White Cloth Electrodes - 4/pack (+$5.99)
2" x 3.5" Rectangle AntiMicrobial White Cloth Electrodes - (10 Packs) (+$59.99)
3" Round Tan Cloth Electrodes (TYCO Gel) - 4/pack (+$4.25)
3" Round Tan Cloth Electrodes (TYCO Gel) - (10 Packs) (+$42.50)
4" x 6" Low Back Butterfly White Foam Electrode (+$5.95)
4" x 6" Low Back Butterfly White Foam Electrode (10 Packs) (+$59.50)
Sub Zero Pain Relieving Gel
Sub Zero Pain Relieving Gel
3oz Roll On (+$5.99)
4oz Tube *OUT OF STOCK* (+$5.99)
16oz Pump *OUT OF STOCK* (+$14.99)
Gallon Jug with Pump (+$84.99)
Conductive Electro-Stim Garments
Conductive Electro-Stim Garments
Garmetrode Conductive Stimulation Glove (1 Pair) (+$29.95)
Garmetrode Conductive Stimulation Sock (+$29.95)
Garmetrode Conductive Stimulation Elbow Sleeve (+$29.95)
BodyStim Conductive Stimulation Back Brace (+$54.95)
BodyStim Conductive Stimulation Neck Garment (+$44.95)
BodyStim Conductive Stimulation Elbow Brace (+$44.95)
BodyStim Conductive Stimulation Knee Brace (+$44.95)
Batteries & Chargers
Batteries & Chargers
1x TENS Cell 9V Heavy Duty Battery (+$0.95)
5x TENS Cell 9V Heavy Duty Battery (+$4.50)
1x TENS Cell 9V Alkaline Long Lasting Battery (+$2.95)
5x TENS Cell 9V Alkaline Long Lasting Battery (+$14.50)
1x TENS Cell 9V Battery Charger + 2x Rechargeable 9V Batteries (+$19.95)
Soft Touch Fabric Hot & Cold Packs
Soft Touch Fabric Hot & Cold Packs
5" x 10" (+$6.95)
7.5" x 11" (+$8.95)
11" x 14" (+$14.95)
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Price
10 - 31
$47.00
32 - 63
$46.50
64 - 95
$46.00
96+
$45.00
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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
(71" Long)
Hard Plastic Carrying Case
Instruction Booklet
Electrotherapy Programs
:
4 TENS Modes:
Burst
Burst Rate adjustable from 0.5 - 5Hz, pulse width from 50-300
µS, 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.
Rating Snapshot
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186
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16
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Average Customer Ratings
4.9
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5/5 rating
Miss
Recieve unit quickly, works great and I use it often. It did stop working when plugged into an outlet but worked with a battery, however I contacted customer service and they got a replacement sent out.
Did you find this helpful?
2 of 2
Found Helpful
Reviewed by:
Dawnnita Wright
from Donovan on 9/3/2025
5
5
5/5 rating
Knee Replacement Man
My Physical Therapist suggested that EMS might help me and recommended this unit. I got the unit for use in strengthening muscles after a total knee replacement and it worked fine for that purpose. I also use the unit for strengthening muscles for hip abduction after the muscles were degraded due to metal-on-metal hip leaking metal ions. I needed to purchase 3"x5" electrodes from another vendor for that purpose. It does seem to be improving my hip abductions strength. For the knee I used these settings: Total time: 6 minutes Pulse Width (PW): 300 us Pulse rate (PR): 50 Hz (>50 target Type 2 fibers) Ramp time: 2 seconds On time: 4 seconds (In the early phase after surgery, you may adjust your on time to 6 seconds and your off time to 8-12 seconds) Off time: 8-12 seconds Intensity set to 75 For the hip, I use the same settings, except intensity is set to 105 (maximum). Electrode placement is critical. I used placement per this photo:
Did you find this helpful?
5 of 5
Found Helpful
Reviewed by:
TjKaminski
from Wisconsin on 7/2/2025
5
5
5/5 rating
N/A
This is a great unit. It has exceeded my expectations. I highly recommend the unit. I did buy the larger size pads and we are using them. They stick on well and restick well. Just a great unit.
Did you find this helpful?
5 of 5
Found Helpful
Reviewed by:
Shirley
from California on 5/25/2025
5
5
5/5 rating
Faster ACL Recovery
I can’t say enough about this TENS device. I recently had ACL reconstruction surgery and purchased this based on a recommendation from my sports med PT. Using in EMS mode has helped me activate and strengthen my quad and recover quicker. I still use it daily. The device is very easy to use and well designed with a nice case. My only advice would be to also purchase larger 3x5” pads as the pads that come with the unit are small.
Did you find this helpful?
8 of 8
Found Helpful
Reviewed by:
Matt T
from Madison, WI on 4/22/2025
5
5
5/5 rating
Excellent
Item and service are excellent!
Did you find this helpful?
3 of 4
Found Helpful
Reviewed by:
Roger
from KY on 3/28/2025
5
5
5/5 rating
Mr.
Programming the various modes didn't seem intuitive at first. After gaining some experience, however, it became easier for me. The unit is small and light and has withstood being bounced off the floor a few times with the only result being that the battery compartment cover popped off. It wasn't broken and popped back on OK. The unit has an illuminated display that times out after a few seconds. The illumination makes it easy to confirm setting. The various programs have helped mitigate pain from arthritis in my knees, hands, and wrists. The burst mode also is very helpful mitigating severe muscle cramps. At first, I was not happy that the unit is powered by a 9v battery (I preferred AA). But I bought a couple of rechargeable 9v batteries and couldn't be happier. One charge lasts hours of on-time and the battery recharges in an hour or so. If you need more than the TENS or EMF program, you might want to look at other units. But if you need just the two, this is a good quality, cost-effective unit. I have more than one, as I wanted to keep one in the bedroom and one in the family room.
Did you find this helpful?
3 of 4
Found Helpful
Reviewed by:
Andrew
from PA on 2/7/2025
5
5
5/5 rating
Intensity Twin Stim 111
Works as intended, was recommended by the doctor. Love this small helper.
Did you find this helpful?
2 of 2
Found Helpful
Reviewed by:
Olena Krot
from Los Algeles on 1/18/2025
5
5
5/5 rating
Strong & Adequate
I have been quite satisfied with the TENS/Muscle stimulation unit, the InTENSity Twin Stim III. I have ordered a total of 24 of them, The TENS treatment provides adequate pain relief, while the muscle stimulation provides a strong enough muscle contraction to treat knee and shoulder muscle atrophy for the patients we supply. I will be ordering more in the future...
Did you find this helpful?
4 of 4
Found Helpful
Reviewed by:
Anthony
from Monroeville, PA on 11/25/2024
5
5
5/5 rating
Mr.
Very pleased with the unit. As others have noted it does seem a little complicated at first but now it is easy to use. Both me and my wife use it.
Did you find this helpful?
3 of 3
Found Helpful
Reviewed by:
Bill
from NY on 10/31/2024
5
5
5/5 rating
Tenspro
This product works very well. It is helping me with strengthening and pain. My PT programmed it and it is very easy to use. I put it on in the morning and night and can feel it working.
Did you find this helpful?
3 of 3
Found Helpful
Reviewed by:
Sandy
from Clarkston on 8/18/2024
5
5
5/5 rating
For tVNS
This product is great for the price to engage in tVNS as it allows the user to bring the setting quite low which is necessary for tVNS! Saved me lots of money!
Did you find this helpful?
6 of 6
Found Helpful
Reviewed by:
AT
from CA on 5/26/2024
5
5
5/5 rating
Mr
After 4 epidural injections, my doctor recommended this device. It couldn’t have been a better recommendation. I use it often to relieve muscle strain as well as sciatic pain. Highly recommended
Did you find this helpful?
4 of 5
Found Helpful
Reviewed by:
Walt Hack
from Mississippi on 5/10/2024
5
5
5/5 rating
Great for back pain
This unit has done wonders for my back pain. I recommend it to everyone I know.
Did you find this helpful?
2 of 3
Found Helpful
Reviewed by:
James LeGendre
from OXFORD on 4/21/2024
5
5
5/5 rating
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?
3 of 4
Found Helpful
Reviewed by:
Madison
from Georgia on 1/1/2024
5
5
5/5 rating
Great device
Quality product that does just what I need for EMS
Did you find this helpful?
3 of 4
Found Helpful
Reviewed by:
Hannah
from PORTLAND on 11/12/2023
5
5
5/5 rating
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?
3 of 5
Found Helpful
Reviewed by:
Cody
from Utah on 9/15/2023
5
5
5/5 rating
owner
Great service and quality products!
Did you find this helpful?
2 of 3
Found Helpful
Reviewed by:
Tim Sheeran
from Grand Rapids on 9/15/2023
5
5
5/5 rating
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?
2 of 2
Found Helpful
Reviewed by:
SS
from U.S.A. on 7/21/2023
5
5
5/5 rating
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?
1 of 2
Found Helpful
Reviewed by:
gali
from california on 7/10/2023
5
5
5/5 rating
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?
3 of 6
Found Helpful
Reviewed by:
Linda
from Va. Beach, va. on 6/4/2023
5
5
5/5 rating
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?
4 of 4
Found Helpful
Reviewed by:
Anita
from Atlanta, GA on 3/26/2023
4
4
5/5 rating
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:
June Gordon
from Sebastopol on 12/11/2022
5
5
5/5 rating
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 3
Found Helpful
Reviewed by:
Angie baltzell
from Mountain dale, ny on 12/1/2022
5
5
5/5 rating
Great purchase!
Quality device, works as promised.
Did you find this helpful?
2 of 2
Found Helpful
Reviewed by:
Matt
from Iowa on 9/1/2022
5
5
5/5 rating
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?
12 of 13
Found Helpful
Reviewed by:
Paul Richardson
from Kelseyville on 7/4/2022
4
4
5/5 rating
Great device
Very easy to use, well built affordable
Did you find this helpful?
5 of 7
Found Helpful
Reviewed by:
Mike
from Syracuse, ny on 5/31/2022
5
5
5/5 rating
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?
24 of 25
Found Helpful
Reviewed by:
Dr Tom Robertson
from Odenton, MD on 3/23/2022
5
5
5/5 rating
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?
6 of 9
Found Helpful
Reviewed by:
Janene
from Colorado on 3/2/2022
5
5
5/5 rating
Mr.
I love this thing!!!!
Did you find this helpful?
5 of 8
Found Helpful
Reviewed by:
Marx
from Fl. on 2/6/2022
5
5
5/5 rating
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 6
Found Helpful
Reviewed by:
Teresa
from Fair Oaks on 1/21/2022
5
5
5/5 rating
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 7
Found Helpful
Reviewed by:
UP Mom
from Skandia on 11/19/2021
5
5
5/5 rating
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:
Mitch
from Iowa on 10/10/2021
5
5
5/5 rating
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 10
Found Helpful
Reviewed by:
denise
from richmond, va on 9/14/2021
5
5
5/5 rating
mr
works as adveriised
Did you find this helpful?
1 of 4
Found Helpful
Reviewed by:
joe
from usa on 9/2/2021
4
4
5/5 rating
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:
Joe
from MADISON on 8/8/2021
5
5
5/5 rating
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?
5 of 5
Found Helpful
Reviewed by:
Lynda Goodwin
from Oregon on 7/10/2021
5
5
5/5 rating
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:
john dixon
from ocala on 5/23/2021
5
5
5/5 rating
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:
F Louise Smith
from Apple Valley on 4/9/2021
5
5
5/5 rating
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:
Bikk
from Pa on 2/9/2021
5
5
5/5 rating
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:
Bill Tully
from Florida on 1/12/2021
5
5
5/5 rating
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 16
Found Helpful
Reviewed by:
Donna
from Illinois on 1/8/2021
5
5
5/5 rating
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:
Ronald
from Sarasota on 12/27/2020
4
4
5/5 rating
Love it!
I love my TENS unit. It does wonders!
Did you find this helpful?
4 of 4
Found Helpful
Reviewed by:
Shirl Hagene
from Sparta on 11/30/2020
5
5
5/5 rating
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:
Mary
from Las Vegas on 11/28/2020
5
5
5/5 rating
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.
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23 of 23
Found Helpful
Reviewed by:
SJ Bryant
from Idaho, USA on 11/21/2020
5
5
5/5 rating
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?
8 of 8
Found Helpful
Reviewed by:
Doreen
from New Fairfield Ct on 10/13/2020
5
5
5/5 rating
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:
Nate
from San Francisco on 8/7/2020
5
5
5/5 rating
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!
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5 of 6
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Reviewed by:
DIlip Joshi
from Livonia on 7/23/2020
5
5
5/5 rating
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 .
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Reviewed by:
Paul Hogan
from United Kingdom on 7/20/2020
5
5
5/5 rating
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.
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Reviewed by:
Rebekah
from Ohio on 7/18/2020
5
5
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Q:
How many uses can I get from the pads?
Asked by:
Michael
- 9/17/2015
A:
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.
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Answer provided by:
TENSPros Management (9/17/2015)
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Q:
Is this device FDA approved?
Asked by:
Chad
- 10/31/2015
A:
Yes, the InTENSity Twin Stim III is FDA 510K-approved.
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Answer provided by:
TENSPros Management (11/3/2015)
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Q:
Are you able to customize/change the TENS and EMS settings to your own preferences?
Asked by:
Jack
- 8/6/2015
A:
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.
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Q:
What is the difference between the above unit and the "TENS 3000 TRANSCUTANEOUS NERVE STIMULATOR?
Asked by:
Dr. Jose Minaya MD
- 2/1/2017
A:
The InTENSity Twin Stim III is a TENS and EMS/NMES combination unit, allowing the user to be able choose between either TENS (Nerve Stimulation for pain relief) or EMS (Muscle stimulation for rehabilitation and re-education). This unit also runs off of either a 9V battery or an AC Adapter so that you can plug it into a wall outlet and power it that way. The TENS 3000 is a basic, analog, stand-alone TENS unit, and only runs off of a 9V battery.
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Q:
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?
Asked by:
Leah H
- 7/21/2015
A:
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.
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TENSPros Management (7/21/2015)
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Q:
how many electrodes come in the package included with the unit?
Asked by:
karen
- 8/4/2015
A:
The Twin Stim III comes standard with one pack of four 1.5" x 1.5" Tan Cloth electrodes.
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Answer provided by:
TENSPros Management (8/4/2015)
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Q:
exact size of unit?
Asked by:
Sylvia Clarke
- 8/1/2015
A:
The Twin Stim III is very light and portable, with official dimensions of 4.5" x 2.55" x 0.9" and it weighs 0.28 lbs with the battery.
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TENSPros Management (8/3/2015)
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Q:
Does this machine have heat like a heating pad. If not, what do you have that gives off heat along with the features of this unit?
Asked by:
GINNY
- 8/4/2015
A:
The Twin Stim III is a combination TENS and EMS electrotherapy device. It does not work like a heating pad. If you are interested in a heating pad, you may want to consider the "Thera-Med Professional Dual Moist-Dry Heating Pad" that we also have available here: http://www.tenspros.com/theramed-professional-dual-mode-heating-pad.html
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TENSPros Management (8/6/2015)
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Q:
What comes in the accessory starter kit (29.95)? Thanks.
Asked by:
Ron
- 8/20/2015
A:
Here is a link to our
electrotherapy supply starter bundle
that you can refer to at your own convenience.
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TENSPros Management (8/20/2015)
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Q:
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?
Asked by:
Tom
- 12/3/2017
A:
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.
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Answer provided by:
TENSPros Management (12/5/2017)
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Q:
Are the four pads included with the InTENSity Twin Stim III Digital TENS & EMS Combo unit? Would it be possible to get pads that are the next size up larger than the 2 by 3.5 electrode pads?
Asked by:
Mark Altgelt
- 8/5/2016
A:
This unit comes standard with one pack of four 1.5" x 1.5" Tan Cloth Electrodes. Feel free to browse our other
electrodes
as well, as they all have the same 2mm pin-style connection and will work just fine with all of our units, unless explicitly stated otherwise.
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Answer provided by:
TENSPros Management (8/8/2016)
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Q:
Where can I find side by side comparisons of TENS/EMS device features?
Asked by:
hblatz
- 12/27/2016
A:
Our
TENS Unit Buying Guide
may be a good place to start.
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Answer provided by:
TENSPros Management (12/27/2016)
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Q:
I travel overseas a lot. Is the unit/AC adaptor dual voltage so that it can be used overseas at 220v?
Asked by:
Matt
- 7/13/2015
A:
Yes! The AC Adapter for our InTENSity devices are 120v/240v, so they may indeed be used overseas with a 220v outlet.
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Answer provided by:
TENSPros Management (7/14/2015)
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Q:
My problem is lower back pain. Which of your products you recommend I purchase? My wife has peripheral neuropathy and has severe leg cramps. Might your device help her? Thank you
Asked by:
David
- 7/20/2015
A:
For specific cases, we highly recommend first consulting with a doctor/medical professional to see if an electrotherapy treatment is right for you. If an electrotherapy treatment, such as TENS, EMS, etc., is a recommended option, then please do feel free to contact us, as we will be happy to suggest the right unit for you based on your doctor's recommendation.
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Answer provided by:
TENSPros Management (7/21/2015)
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Q:
Is it rechargeable?
Asked by:
RAH
- 8/29/2016
A:
This unit can be used either with a 9V Battery or the included AC Adapter. We do also carry
Rechargeable 9V Batteries
and a compatible
9V Battery Charger
. You may also want to consider the latest version of this unit, the
InTENSity Twin Stim IV
, which runs off of a rechargeable lithium-ion battery like a modern-day smartphone.
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Answer provided by:
TENSPros Management (8/30/2016)
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Q:
Can this unit be used on the face for TMJ?
Asked by:
Aaron
- 8/17/2017
A:
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.
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Answer provided by:
TENSPros Management (8/18/2017)
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Q:
Does this unit come with electro sticky pads?
Asked by:
bruce
- 4/23/2018
A:
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.
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Answer provided by:
TENSPros Management (4/25/2018)
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Q:
What unit and accessories should I get for Tennis Elbow? What size pads, etc.?
Asked by:
DONALD
- 8/11/2015
A:
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.
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Answer provided by:
TENSPros Management (8/13/2015)
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Q:
will this help patients with stroke, paralyzed hand? if not satisfied what is return policy?
Asked by:
jamil
- 8/22/2015
A:
For specific cases, we highly recommend consulting with your doctor/medical professional first to see if an electrotherapy treatment such as TENS or EMS is right for you. If so, then we can help provide further information regarding particular products, but we can not make recommendations for specific ailments, as we do not employ doctors here. You can find our
shipping and returns policy
on our website.
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TENSPros Management (8/26/2015)
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Q:
Is this unit recommended for wrist and finger extension post stroke?
Asked by:
john morgan
- 7/3/2016
A:
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.
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Answer provided by:
TENSPros Management (7/5/2016)
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Q:
what does EMS mean?
Asked by:
barbara miller
- 8/26/2016
A:
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.
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Answer provided by:
TENSPros Management (8/26/2016)
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Q:
What are the specific parameters and ranges that can be set in the EMS mode of the InTENSity TwinStim III Digital TENS and EMS unit that you are advertising? Thank you!
Asked by:
Dale
- 3/22/2016
A:
For complete item details and information, please refer to the product description and/or the instruction manual on this page.
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Answer provided by:
TENSPros Management (3/23/2016)
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Q:
My son has the PL-009 model. Is this as good a model? Also does this model come complete with pads or do you have to order pads extra?
Asked by:
harry guss
- 8/26/2016
A:
The PL-009 is a "pulse massager," which is not a TENS or EMS unit, and is generally not used for medical purposes. As far as extra supplies, please refer to the product description for a list of everything that comes included with each package. Please contact us by phone or email if you have any further questions.
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Answer provided by:
TENSPros Management (8/26/2016)
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1
Q:
Where should you place the electrode pads for the foot treatment?
Asked by:
Bud Hightower
- 9/1/2016
A:
Feel free to refer to our
Electrode Placement Chart
. Consider speaking to your doctor for specific treatment settings and questions as well.
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Answer provided by:
TENSPros Management (9/1/2016)
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Q:
Does this unit have a belt clip on the back?
Asked by:
Laura
- 5/1/2018
A:
Yes, each unit comes standard with a removable belt clip attached.
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Answer provided by:
TENSPros Management (5/2/2018)
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Q:
Dear Sir/Ms: I have the Intenisty Twin Stim III. I have followed the step by step instructions but have not been able to start the program. Instructions say to press "S:" button when all is set up. When I do so it goes back to the beginning. So what is the magic button to get this to work?! Thanks for your time, Liz
Asked by:
Liz Cecchi
- 3/25/2021
A:
The final step of the setup cycle, when pressing the "S" button to navigate through each of the treatment parameters, is where you see "0 mA" displayed on the lower left and right-hand corners on the screen. This is for adjusting the pulse amplitude, measured in milliamps (mA), which is the intensity of the stimulation. So when you get to this point of the setup process, you are ready to begin your treatment session by pressing the appropriate Channel Up button(s) to increase the intensity from 0mA to 1mA and so forth, which will immediately activate the treatment timer as well. The intensity is adjustable from 0 - 105mA in 1mA increments. 'Hope this helps!
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Answer provided by:
TENSPros Management (3/28/2021)
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Q:
Has this device been tested to meet applicable United States Federal Aviation Authority/Department of Transportation requirements for medical portable electronic devices? Is it labeled as such? If not, please send me a compliance letter or certificate from the manufacturer stating the FAA approval. Thank you.
Asked by:
Sammy
- 9/13/2025
A:
TENS units, like the InTENSity Twim Stim III here, are treated like any other portable electronic device, and are indeed TSA-compliant. You can view TSA's guidelines regarding TENS units on their own website here:
https://www.tsa.gov/travel/security-screening/whatcanibring/items/tens-unit
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TENS Pros Management (9/16/2025)
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