The NDI Krios is a handheld digitizer system based on 3D position measurement with infrared light. The system is different from the other digitization hardware Compumedics Neuroscan offers, since it uses a scanning technique to capture the positions of multiple electrodes at the same time. This makes this digitizer very fast, accurate and error-proof.
This device is especially suited for those occasions where you need to measure the 3D positions of many electrodes (i.e. 64, 128 or more). In order to use the NDI Krios digitizer with your caps, you will need to add reflective stickers to the electrodes.