Clinical Geodesic EEG System 400

GES 400 clinical web icon
The patient-friendly Geodesic EEG System (GES) 400 is the fastest and easiest-to-use clinical EEG system EGI has ever made, featuring a smart amplifier and advanced Net Station 5 software running on the latest Apple computers. The clinical applications for the GES 400 include:

Video Camera options

Video camera

Download Brochure



What is Geodesic EEG?

best eeg quote

Over 20 years ago Electrical Geodesics, Inc. (EGI) revolutionized EEG with Geodesic EEG technology. Using a net structure to hold the electrodes in place, Geodesic EEG allows all electrodes to be applied simultaneously – from 32 channels for routine exams up to 256 channels for source estimation. All Geodesic EEG systems provide superior whole head coverage over traditional caps while including the standard 10/20 sensor arrays.

Geodesic Sensor Net for EEG recording

The Geodesic Sensor Net

You and your patients will love the easy, comfortable Geodesic Sensor Net (GSN).
  • the GSN can be applied in minutes and removed in seconds
  • no need for multiple, time-consuming head measurements, painful scalp abrasions, or glues
  • no sedation or restraints needed for infants and children with behavioral challenges

Net Station 5 EEG Software

Net Station 5 software features an intuitive interface for fast EEG data acquisition and review.

  • optimized for reviewing from the traditional 10-20 montage up to 256 channels of data with ease and speed
  • simultaneously view EEG chart, topo plot, and topo map
  • create and save custom workspaces for optimizing your clinic's workflow

Net Station EEG Software


Contact us for more information



Brain Activity Visualization with GeoSource

Harness the power of High Density EEG to look beyond the traditional chart with GeoSource brain activity visualization software.
  • translate EEG waveforms into brain space visualization
  • view source estimation of brain activity on MRI-based head models
  • simultaneously view GeoSource visualizations with the EEG chart and topo plots in Net Station 5

GeoSource Software


Integrated physiological measurements with the Physio16 input boxg00195 physio16 web

The Physio16 input box is designed specifically for use with the GES 400 for integrated recording of physiological measurements and EEG. Two Physio16 boxes can be connected to the Net Amps 400 amplifier to measure, record, and review up to 32 bipolar channels and 2 SpO2 channels, along with up to 256 EEG channels.

The Physio16 input box supports respiration, body position, EMG, ECG, and SpO2 measurements. It accepts 1.5 mm female safety connectors, which are typical of FDA-cleared sensors.


Geodesic EEG System 400 products

Geodesic EEG System (GES) 400 – EGI’s foundation product for clinical EEG.

  • 32, 64, 128, or 256 EEG channel Geodesic Sensor Nets
  • 2 ECG channels standard, with up to 32 channels of physiological measurements using the optional Physio16 input box
  • Net Amps 400 amplifier with remote upgrade abilities
  • sampling rate up to 1000 Hz
  • Net Station 5 EEG acquisition and review software
  • MacBook Pro, iMac or Mac Pro computer
  • hospital grade isolation transformer
  • routine or long term monitoring configurations available
  • digital video system available
  • optional GeoSource software for brain activity visualization
  • optional Geodesic Photogrammetry System for sensor localization

Geodesic EEG System (GES) 405 – the most affordable product for Geodesic EEG, this system has all the features of the GES 400 but is designed for 32 channel EEG only. 

Contact us for more information

The sale of medical devices is strictly regulated by national laws. Please contact MagstimEGI for further details. Not all products are available in all markets. This page is not an offer to sell a medical device in any country where its sale would be prohibited by law.