Pair of 3×3″ Amrex Sponge Electrodes

Amrex Sponge Electrodes
3x3 Amrex Electrodes for The Brain Stimulator02-A103 Amrex Sponge Electrodes


These 3×3″ Amrex Sponge electrodes are the most common size used for tDCS. They’re often chosen for their larger targeting area, and higher level of comfortability over 2×2″ Electrodes.

Note: Amrex Adapters are required to use these electrodes with The Brain Stimulator

SKU: Am-Elect3x3 Category: Tags: ,

Product Description

Amrex Sponge Electrodes

Amrex Sponge Electrodes are arguably the best sponge electrodes on the market, and are preferred by many tDCS enthusiasts. Amrex Electrodes are comprised of a cellulose sponge with a stainless steel metal mesh backing, all enclosed within a thick, rigid, rubber casing.

You may consider adding replacement sponge inserts to your order. Through real-world testing, we recommend replacing the sponge inserts every two weeks (or every 14 uses). We sell 10-packs of Amrex replacement sponges so you will have plenty on hand when your original one’s need replacing. Over time, the sponges within Amrex electrodes can grow brittle and crumble, crack, or split causing an uneven distribution of current. Worn-out sponges can create an uncomfortable tDCS session, with increased tingling, itching, and sometimes stinging sensations occurring.

Additional Information

Brand Name

Amrex Electrotherapy

Sponge Electrode Size