Source google image: https://www.researchgate.net/profile/Anubha_Kalra/publication/329109809/figure/fig4/AS:703667481096196@1544778809819/a-Wet-silver-silver-chloride-electrodes-b-dry-contact-electrodes-c-Non-contact_Q320.jpg
Schema electrique 125 rg fun
Source google image: https://www.researchgate.net/profile/Anubha_Kalra/publication/329109809/figure/fig4/AS:703667481096196@1544778809819/a-Wet-silver-silver-chloride-electrodes-b-dry-contact-electrodes-c-Non-contact_Q320.jpg