Encephalan Main Syncro system: a multi-channel wireless telemetric recorder ABP26, which includes two sets of ES 26 nets suitable for electroencephalography, evoked potentials, polygraphy, polysomnography, monitoring, and neurofeedback. Skin Conduction Activity system: for the acquisition of electrodermal activity (EDA) through two surface electrodes with a snap connector. Suitable for the evaluation of emotional states. Thoracic/abdominal breath sensor: allows acquisition of respiratory amplitude and frequency with adjustable band that can be positioned on the chest or abdomen. Electrocardiogram sensor: with three-core cable for ABP systems. Allows acquisition of ECG signal through two electrodes with snap connector.