I've been looking for Ag/AgCl Silver/Silver chloride reference
electrodes. I found several on the Internet, but the cost was from $100
to $160 (US$).

That was too high for my blood, so I looked around for the electrodes
themselves. I found them at a medical supply outlet in California for
$18.50 (US$). So I bought two of them. I just received them and soldered
one of them to a 'test' cable to plug into my multimeter. It works fine.


How can companies sell them for so much $$??

Hope this helps..

Hanz