Sponge electrodes need to be wet to work.

foc.us sales bottle

Use the foc.us water bottle to wet your sponge elecrtodes.

wet sponge before stimulation

Fill the bottle with water and then squirt some water onto the sponges when required.

You can add a very small pinch of salt to make a 0.1% saline solution. This will decrease the resistance marginally, so is not totally necessary.


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