EEG Linked Ear SensorsThe EEG Sensor can measure 2 or 4 channels of EEG with a linked ear reference. The EEG Sensor is provided with easy snap on connectors for using various types of electrodes. The sensor is supplied with a shielded cable and medical grade ODU connectors. This reduces noise and artifacts through movement. Measuring electrophysiological signals always requires a ground. Features 2 or 4 channel EEG with linked ear reference Shielded cables for high signal