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Allied Medical  |  SKU: GEMSTIM

Gemstim TENS Machine

$129.00 INC GST

A drug free pain relief solution, the Gemstim TENs unit is a cost-effective TENs unit ideal for single patient use either at home or on the go. The electronics of the unit creates electric impulses - the intensity, duration, frequency per second and modulation of these impulses can be adjusted through the switches. Please note the TENs unit should only be used in conjunction with advice or guidance from a healthcare professional familiar with TENs machines uses and their contraindications.

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T.E.N.S. (Transcutaneous Electrical Nerve Stimulator) is a type of electrotherapy equipment that works by sending small electrical pulses through the skin via tens unit electrodes to the underlying peripheral nerves. T.E.N.S. is thought to work in two ways. First, "high frequency" continuous, mild, electrical activity blocks the pain signal traveling to the brain. Brain cells perceive pain. If the pain signal does not get through to the brain, the pain is not "felt." The second way is by stimulating the body's own natural pain-control mechanism. "Low frequency" or short bursts of mild electrical activity cause the body to release its own pain easers called beta endorphins. Ask your doctor or clinician for more details on this type of electrotherapy equipment.

Electric myostimulation has proven its high value as a method of pain therapy and is a great help to the experienced therapist.

The unit is a dual-channel electric stimulator for active treatment application, which is equipped with a Liquid Crystal Display indicating operation modes and output as well as an 8-bit microcomputer for controlling the system.

The electronics of the unit create electric impulses: the intensity, duration, frequency per second and modulation of these impulses can be adjusted through the button or knob.

Unit comes complete with:

  • Four pre-wire reusable self-adhesive electrodes
  • 9-volt battery
  • Leads (two-channel)
  • Instruction manual
  • Compact, stylish carry case
  • Timer
  • 12-month warranty
  • FDA approved and CE marked.

Important Information:

There are contraindications to using a TENS machine including placement over the throat and if
using a pacemaker or other ECG monitoring device. For a full list please read the warning, precautions and adverse reactions sections of the user manual before proceeding. Ensure you have read and understood the operating instructions. The information provided with this unit is for guidance only and should not replace advice provided by your health professional. 


How should you store a TENS machine?

To properly store the device for an extended period of time, remove the battery from the unit. Put the unit and accessories in a carrying case and store in a cool, dry location.

How do you clean a TENS machine?

The device can be cleaned by wiping gently with a damp cloth moistened with mild soap and water. Never immerse the device in water or other liquids.

Wipe lead wires with a damp cloth as above if they become soiled.

Are there any side effects associated with TENS therapy?

TENS therapy is generally considered safe and well-tolerated. However, some individuals may experience minor side effects like skin irritation or muscle twitching during use. These effects are usually temporary and can be minimised by following the recommended settings and guidelines. If a user experiences persistent discomfort or has concerns about side effects, they should consult with a healthcare professional.

Is the TENS Machine painful?

TENS should not feel painful and if pain is felt the user needs to ajust the settings or stop using the devise. The user should set the intensity at a level that is strong, but tolerable. It may feel like a tingling, buzzing, or muscle-twitching sensation. As the user grows accustomed to the feeling, they may be able to increase the intensity.

What conditions can a TENS machine help with?

TENS machines are commonly used to manage various types of pain, including back pain, arthritis, muscle pain, labour pain and postoperative pain. They can also be helpful for conditions like sciatica, menstrual cramps, and neuropathy. However, it's essential to consult with a healthcare professional to determine if TENS is suitable for your specific condition.

What is a TENS machine, and how does it work?

A TENS (Transcutaneous Electrical Nerve Stimulation) machine is a portable device that uses mild electrical impulses to relieve pain. It works by sending these low-frequency electrical currents to the users nerves, which can disrupt pain signals and promote the release of endorphins, your body's natural painkillers.


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Great service and prompt replies from Kat to emails. Love working with the team.

Briar Day

Occupational Therapist

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Occupational Therapist