S-Probe, 16ch, 150µm electrode spacing, 125mm total length(10mm; 640µm dia reinforcement tube); 236µm probe dia; 2x CON/8o50m connector interface; 600µm tip to 1st site; Fiber optic on channel 5/6 & 13/14. Originally it had 2 fluid channels. None of them is working. Fluid connector end is on. If not needed it can be cut off.