Thought Technology Ltd. products

Triode electrode, with standard 2cm spacing of silver silver chloride electrodes, backed with nickel plated brass snaps to prevent corrosion when connected to pre-amplifiers for extended periods.

UniGel electrodes, pre gelled single electrodes, for sensitive placements on dry skin. It can be used in place of T3404 single strip electrodes.  Sold in packs of 100.