S-Probe, 32ch, stereotrode configuration; 100µm interelectrode spacing, 75 intraelectrode spacing; 125mm total length(25mm; 640µm dia reinforcement tube); 300µm probe dia; 1x CON/32m-V-connector interface; 680µm tip to 1st site; fluid channel between sites 20/22. Sites 3,7,29,31 not working. Has two fluid channels but one is blocked