Greentek Gelfree S3 EEG Electrode Layout only Available for 16 Channels? Posted bypg@petergamma.org September 13, 2022September 13, 2022 Last Updated on September 13, 2022 by pg@petergamma.org In the documentation there is only a layout for 16 chanhels: https://www.greenteksensor.com/wp-content/uploads/CustomUpload/GT%20Cap%20Gelfree-S3/Electrode%20Layout%20of%20GT%20Cap%20Gelfree-S3.pdf