--- product_id: 46613339 title: "iStim Tens Unit Stimulator Machine - EV820 with 8 Electrodes Japanese Gel for Pain Management, Back Pain and Rehabilitation" price: "VT14292" currency: VUV in_stock: true reviews_count: 10 url: https://www.desertcart.vu/products/46613339-istim-tens-unit-stimulator-machine-ev820-with-8-electrodes-japanese store_origin: VU region: Vanuatu --- # 2-channel digital TENS tech 5 modes & 12 preset programs Premium Japanese SEKISUI gel pads iStim Tens Unit Stimulator Machine - EV820 with 8 Electrodes Japanese Gel for Pain Management, Back Pain and Rehabilitation **Price:** VT14292 **Availability:** ✅ In Stock ## Summary > ⚡ Zap pain, boost life — the pro’s choice for smart relief! ## Quick Answers - **What is this?** iStim Tens Unit Stimulator Machine - EV820 with 8 Electrodes Japanese Gel for Pain Management, Back Pain and Rehabilitation - **How much does it cost?** VT14292 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/46613339-istim-tens-unit-stimulator-machine-ev820-with-8-electrodes-japanese) ## Best For - Customers looking for quality international products ## Why This Product - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Dual-Channel Precision:** Control pain with targeted, customizable stimulation on two separate channels for maximum relief. - • **Versatile Therapy Modes:** Choose from 5 TENS modes and 12 preset programs tailored to your unique pain and muscle needs. - • **Premium Japanese Gel Pads:** Experience superior conductivity and skin comfort with biocompatible SEKISUI gel electrodes. - • **FDA & 510K Approved Safety:** Clinically certified, drug-free pain relief device trusted by professionals and safe for daily use. - • **FSA/HSA Eligible Investment:** Use your health savings accounts to invest in long-term, natural pain management without prescriptions. ## Overview The iStim EV-820 is a compact, FDA-approved digital TENS unit featuring dual channels, 5 therapy modes, and 12 preset programs. It uses premium Japanese SEKISUI gel electrodes for optimal conductivity and comfort, delivering drug-free, non-invasive pain relief for chronic and acute conditions. Lightweight and easy to use, it’s FSA/HSA eligible and designed for professional-grade rehabilitation and everyday muscle relaxation. ## Description iStim We aim to help you relieve chronic pain in all types of bodies. Dedicated to the field of electrotherapy for several years. iStim TENS/EMS Series Visit the Store iStim TENS/EMS Series Visit the Store iStim Incontinence treatment Visit the Store iStim Incontinence treatment iStim TENS/EMS Electrode Pads Visit the Store iStim TENS/EMS Electrode Pads Review: Miracle Device…order one you’ll be glad you did. - Everyone should have a Tens Unit on hand even if they don’t need it all the time . My right arm from my shoulder to my hand would go numb and hurt with a dull ache . My Doctor said it was from a bone spur in my neck . He tried injections in my neck , but said that if that didn’t help that it would probably require surgery to remove the bone spur. I wasn’t about that “ the injections helped for about a week “. Then I remembered that I knew someone that had a tens unit so I asked to borrow there’s . After only using the unit a couple of times , I could feel a remarkable difference in how my arm and shoulder felt . It worked so effectively that my pain completely disappeared to the point where I might every so rarely have to use the device . My only recommendation is to purchase some extra electrode pads . Review: Great simple TENS unit with easy to understand instruction - This is my first TENS machine to help with my muscle pains from work. For people not sure what this machines does Transcutaneous Electrical Nerve Stimulation is a non-invasive method of controlling pain by using tiny electrical impulses sent through the skin to nerves to modify pain perception which reduce or eliminate pain sensation for a short period of time. It does not fix the actual physiological problem. This Unit comes with everything you need to get started: a control unit, a battery, 2 lead wires, 8 electrode pads, instruction manual, and a electrode placement guide. Just follow through the instruction manual the unit is not hard to use even if you have never used one before. I used it for a few days with just 10-15 min each session. I noticed a relieve in intensity of pain after the sessions. It usually lasted for a few hours before the pain came back. I assumed by using a longer session the pain relief will last longer. Also during the second session I used lotion on my arm right before I used the TENS unit and forgot to clean skin and the electrodes gel lost adhesiveness. Next day the electrodes still stayed on but not as good as before. So before you place electrodes on your body make sure to clean it first as directed. ## Features - TENS: "Transcutaneous Electrical Nerve Stimulation"- a safe, non-invasive, drug free method of pain relief used by Physical Therapists and professional Doctors for over decades. By delivering stable pulses to the skin to stimulate nerve fibers, Tens unit could effectively block the pain signal to people’s brain. At the same times, increases natural endorphins, which is a natural pain reliever. In many cases, the reduction or elimination of pain lasts longer than the actual period of stimulation. - iStim EV-820: Digital TENS stimulator device comes with 2 channels, 5 TENS modes and 12 preset programs, sending comfortable impulses through the skin that stimulate the nerve fibers in the treatment area. Effectively Block the pain signal to your brain! Safe and highly effective stimulation helps for treating chronic or acute pain (e.g. shoulder tension, back pain, arthritic, knee pain) and provides muscle relaxation and muscle strengthening. - Japanese electrode pads: High-grade, and biocompatible SEKISUI Japanese gel, which facilitates efficient conducting of the electrical stimulator’s current to the patient’s skin in a dispersed manner. 100% SEKISUI Japanese Gel is the harmless ingredients and the best fit for even sensitive skin users. Use the iStim EV-820 with our best electrodes, making your every pain relief treatment more effective with perfect and comfortable experience [NOTE: DO NOT USE Extra Electrode Gel] - APPROVAL: Approved for the pain relief product. No prescription needed. Safe, All-Natural, Drug Free and Long-Lasting Pain Relief. 510K approved for OTC use and safety regulations (IEC60601-1, IEC60601-1-2 EMC) certified. Made in Taiwan. - INCLUDING: Tens Unit x 1; Electrode Pads x 8; Lead Wires x 2 ; Instruction Manual x 1; Quick Guide x 1; 9V Battery x 1 [NOTE: DO NOT USE EXTRA ELECTRODE GEL!!] - FSA/HSA Eligible: This product qualifies as FSA/HSA eligible, meaning you can use your flexible spending or health savings account to purchase it. ## Technical Specifications | Specification | Value | |---------------|-------| | Best Sellers Rank | #130,681 in Health & Household ( See Top 100 in Health & Household ) #317 in Muscle Stimulators & Accessories | | Customer Reviews | 4.5 out of 5 stars 1,523 Reviews | ## Images ![iStim Tens Unit Stimulator Machine - EV820 with 8 Electrodes Japanese Gel for Pain Management, Back Pain and Rehabilitation - Image 1](https://m.media-amazon.com/images/I/610ESjkLvJL.jpg) ![iStim Tens Unit Stimulator Machine - EV820 with 8 Electrodes Japanese Gel for Pain Management, Back Pain and Rehabilitation - Image 2](https://m.media-amazon.com/images/I/719v7sugNdL.jpg) ![iStim Tens Unit Stimulator Machine - EV820 with 8 Electrodes Japanese Gel for Pain Management, Back Pain and Rehabilitation - Image 3](https://m.media-amazon.com/images/I/61rWmcZOWaL.jpg) ![iStim Tens Unit Stimulator Machine - EV820 with 8 Electrodes Japanese Gel for Pain Management, Back Pain and Rehabilitation - Image 4](https://m.media-amazon.com/images/I/713xCj5nZ2L.jpg) ![iStim Tens Unit Stimulator Machine - EV820 with 8 Electrodes Japanese Gel for Pain Management, Back Pain and Rehabilitation - Image 5](https://m.media-amazon.com/images/I/71dRl-92GIL.jpg) ## Questions & Answers **Q: What's the difference between this machine and the one that sells for over $200 in Amazon?** A: I have the 7000 unit and have worked with this one. Both are great. A good unit should not cost at max more than $60 if it has a few extra accessories. **Q: What size are the lead wire connectors, the pieces that connect the 2 sets of wires together? Its usually in mm?** A: I searched the pamphlet that came with the TENS unit, but I could not find the measurement. I am a nurse and see that the wire end is 1 mm and the electrode lead receiver is 4mm. **Q: How much Amperage power does it have?** A: Pulse Amplitude: Adjustable, 0-100 mA peak into 500 ohm load •Wave Form: Asymmetrical Bi-Phasic Square Pulse •Size: 10.1cm(L) x 6.1cm(W) x 2.45cm(H) •Weight: 150 grams with battery. •Pulse Rate: Adjustable, from 2 to 150 Hz, 1Hz/Step •Pulse Width: Adjustable, from 50 to 300 microseconds, 10μs/step •Modes: B(Burst), N(Normal), M(Modulation), SD1(Strength Duration), SD2, P(P1-12) •Timer: Adjustable, from 5 to 60 minutes or Continuous. **Q: I have to wear the tens unit in the gym. Is this tens unit smaller enough to put in your pocket or a bag around your waist?** A: Hello, thank you for your questions and the device dim. 2.4x4x1 it should be fit your pocket or bag. I hope you enjoy this device in the gym:) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Miracle Device…order one you’ll be glad you did. *by S***E on December 18, 2025* Everyone should have a Tens Unit on hand even if they don’t need it all the time . My right arm from my shoulder to my hand would go numb and hurt with a dull ache . My Doctor said it was from a bone spur in my neck . He tried injections in my neck , but said that if that didn’t help that it would probably require surgery to remove the bone spur. I wasn’t about that “ the injections helped for about a week “. Then I remembered that I knew someone that had a tens unit so I asked to borrow there’s . After only using the unit a couple of times , I could feel a remarkable difference in how my arm and shoulder felt . It worked so effectively that my pain completely disappeared to the point where I might every so rarely have to use the device . My only recommendation is to purchase some extra electrode pads . ### ⭐⭐⭐⭐⭐ Great simple TENS unit with easy to understand instruction *by H***W on December 18, 2017* This is my first TENS machine to help with my muscle pains from work. For people not sure what this machines does Transcutaneous Electrical Nerve Stimulation is a non-invasive method of controlling pain by using tiny electrical impulses sent through the skin to nerves to modify pain perception which reduce or eliminate pain sensation for a short period of time. It does not fix the actual physiological problem. This Unit comes with everything you need to get started: a control unit, a battery, 2 lead wires, 8 electrode pads, instruction manual, and a electrode placement guide. Just follow through the instruction manual the unit is not hard to use even if you have never used one before. I used it for a few days with just 10-15 min each session. I noticed a relieve in intensity of pain after the sessions. It usually lasted for a few hours before the pain came back. I assumed by using a longer session the pain relief will last longer. Also during the second session I used lotion on my arm right before I used the TENS unit and forgot to clean skin and the electrodes gel lost adhesiveness. Next day the electrodes still stayed on but not as good as before. So before you place electrodes on your body make sure to clean it first as directed. ### ⭐⭐⭐⭐⭐ Great unit at a great price *by L***K on December 29, 2018* Product is sound, comes with a convenient case to keep wires and unit straight, even came with a 9v battery. Unit has covers that close over buttons and knobs on the unit to prevent unintentional setting changes. Stronger settings on the unit are extremely strong. Comes with good pads in the box and really leaves no room for complaint about the quality of the device. Shipping was Prime so it was very fast and free. Packaging was easy to open. Instructions were clear with helpful illustrations. Very pleased with the unit. Please note I do not address the value or effectiveness of this therapy in this review, but the machine is of excellent quality and function. ## Frequently Bought Together - iStim Tens Unit Stimulator Machine - EV820 with 8 Electrodes Japanese Gel for Pain Management, Back Pain and Rehabilitation - iSTIM Super Soft 2"x2" TENS Unit Electrodes for TENS Massage EMS - 100% Japanese Gel (2"x2"-16 Pieces) - iStim Super Soft 2"x2" TENS Unit Electrodes for TENS Massage EMS - 100% Japanese Gel (2"x4" - 16 Pieces) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.vu/products/46613339-istim-tens-unit-stimulator-machine-ev820-with-8-electrodes-japanese](https://www.desertcart.vu/products/46613339-istim-tens-unit-stimulator-machine-ev820-with-8-electrodes-japanese) --- *Product available on Desertcart Vanuatu* *Store origin: VU* *Last updated: 2026-06-04*