The electroactive core is completely sealed in glass allowing the electrodes to be used in strong acids and aggressive organic solvents. No glue or epoxy is used to seal it. The end-exposed electrode surface is polished into a microdisk. The electrodes have a length of approximately 8 cm. The electrode can be connected to a preamplifier with a microelectrode holder.
A polishing machine for renewing the surface of the microelectrodes is also available.