Disposable Electrode | Chloride % |
EL500 | 10% |
EL501 | 10% |
EL502 | 4% (solid gel) |
EL503 | 7% |
EL504 | 4% (solid gel) |
EL507 | 0.5% |
EL508 | 10% |
EL509 | n/a: dry electrode—use your own choice of gel |
For electrical stimulation, generally, the lower the electrode salt content, the less skin irritation the subject will experience; this is because fewer salt ions are driven into skin during stimulation. This strategy puts more demand on the stimulator, because skin impedances are higher with low salt electrodes. There is no one size fits all requirement. For example, it’s possible to help mitigate the undesirable effects of higher salt content electrodes by stimulating the subject with bipolar pulses, instead of unipolar pulses.
SOLID gels are gentler on the skin than WET gels at the same salt concentration. This is due to the higher water content in the WET gels that make them react faster and more aggressively on the skin.
We do not recommend for applications running more than 24 hours.
Possible skin irritation can result from the gel or the adhesive on the body of the electrode.
Note—About 2 % of the population will react to any adhesives and gels put on a skin, regardless of composition or concentration.
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