microelectrode holders, magnetic perfusion tube holders, cell baths

G23 Instruments manufacture precision engineered low drift, low noise microelectrode holders for research groups around the world. The company works closely with active research staff within the Research Department of Neuroscience, Physiology & Pharmacology at University College London and other institutes and its novel equipment and designs have been thoroughly tested under rigorous research conditions.

We market microelectrode holders for Axon Instruments headstages, all HEKA patch clamp amplifiers, most NPI electronic amplifiers and spares for our holders. Our electrode holders have been recommended for low drift long term recording and stability by both Axon (prior to their takeover by Molecular Devices) and Burleigh Instruments (Dec 2010: “Pipette drift sources and solutions for patch clamp recording experiments”). 

As a small specialist company, G23 Instruments works with active researchers to continually develop its products and we are able to customise our microelectrode holders to suit particular requirements. Please contact us if you have a particular need.

See Choosing a holder for advice on which holder to purchase.

Please see Ordering and Payment before placing an order.


Our clients include:

 University College London

Harvard Medical School

The Scripps Research Institute

Institut Pasteur

 Allen Institute for Brain Science

Karolinska Institutet

University of Bristol

LMU Muenchen

 Medizinische Universitat Wien

Northwestern University


University of Cambridge

Eli Lilly

 Howard Hughes Medical Institute


California Institute of Technology

Forschungsverbund Berlin e.V.