Dear All, Below is description. I heard that these Units are expensive but if you have Medicare they will pay for all or part of the units. Has anyone tried MET or TENS and what were the results? Microcurrent Electrical Therapy (MET) Microcurrent Electrical Therapy (MET) devices use sub-sensory current (millionths of an amp) that acts on the body’s naturally occurring electrical impulses to decrease pain and facilitate the healing process. The current is delivered through different kinds of devices - via water or gel-moistened electrodes, ear clip electrodes, felt pads, or through the finger tips of black graphite gloves. MET is similar to Transcutaneous Electrical Nerve Stimulation (TENS) but it it uses a significantly reduced electrical stimulation (that has a higher pulse width of 500,000 +/- microseconds). In theory, TENS blocks pain, while MET acts on the naturally occurring electrical impulses to decrease pain by stimulating the healing process.